codeql/java/ql/lib/CHANGELOG.md

4.2.0

Major Analysis Improvements

• Java: The generated JDK 17 models have been updated.

Minor Analysis Improvements

• Java build-mode=none extraction now packages the Maven plugin used to examine project dependencies. This means that dependency identification is more likely to succeed, and therefore analysis quality may rise, in scenarios where Maven Central is not reachable.

4.1.1

No user-facing changes.

4.1.0

Deprecated APIs

• The Field.getSourceDeclaration() predicate has been deprecated. The result was always the original field, so calls to it can simply be removed.
• The Field.isSourceDeclaration() predicate has been deprecated. It always holds.
• The RefType.nestedName() predicate has been deprecated, and RefType.getNestedName() added to replace it.
• The class ThreatModelFlowSource has been renamed to ActiveThreatModelSource to more clearly reflect it only contains the currently active threat model sources. ThreatModelFlowSource has been marked as deprecated.

New Features

• The Java extractor and QL libraries now support Java 23.
• Kotlin versions up to 2.1.0\ x are now supported.

4.0.0

Breaking Changes

• Deleted the deprecated ProcessBuilderConstructor, MethodProcessBuilderCommand, and MethodRuntimeExec from JDK.qll.
• Deleted the deprecated explorationLimit predicate from DataFlow::Configuration, use FlowExploration<explorationLimit> instead.
• Deleted many deprecated taint-tracking configurations based on TaintTracking::Configuration.
• Deleted the deprecated getURI predicate from CamelJavaDslToDecl and SpringCamelXmlToElement, use getUri instead.
• Deleted the deprecated ExecCallable class from ExternalProcess.qll.
• Deleted many deprecated dataflow configurations based on DataFlow::Configuration.
• Deleted the deprecated PathCreation.qll file.
• Deleted the deprecated WebviewDubuggingEnabledQuery.qll file.

Major Analysis Improvements

• A generated (Models as Data) summary model is no longer used, if there exists a source code alternative. This primarily affects the analysis, when the analysis includes generated models for the source code being analysed.

3.0.2

No user-facing changes.

3.0.1

Minor Analysis Improvements

• Threat-model for System.in changed from commandargs to newly created stdin (both subgroups of local).

Bug Fixes

• Fixed an issue where analysis in build-mode: none may very occasionally throw a CoderMalfunctionError while resolving dependencies provided by a build system (Maven or Gradle), which could cause some dependency resolution and consequently alerts to vary unpredictably from one run to another.
• Fixed an issue where Java analysis in build-mode: none would fail to resolve dependencies using the executable-war Maven artifact type.
• Fixed an issue where analysis in build-mode: none may fail to resolve dependencies of Gradle projects where the dependency uses a non-empty artifact classifier -- for example, someproject-1.2.3-tests.jar, which has the classifier tests.

3.0.0

Breaking Changes

• The Java and Kotlin extractors no longer support the SOURCE_ARCHIVE and TRAP_FOLDER legacy environment variable.

New Features

• Java support for build-mode: none is now out of beta, and generally available.

Major Analysis Improvements

• We previously considered reverse DNS resolutions (IP address -> domain name) as sources of untrusted data, since compromised/malicious DNS servers could potentially return malicious responses to arbitrary requests. We have now removed this source from the default set of untrusted sources and made a new threat model kind for them, called "reverse-dns". You can optionally include other threat models as appropriate when using the CodeQL CLI and in GitHub code scanning. For more information, see Analyzing your code with CodeQL queries and Customizing your advanced setup for code scanning.

Minor Analysis Improvements

• Added flow through some methods of the class java.net.URL by ensuring that the fields of a URL are tainted.
• Added path-injection sinks for org.apache.tools.ant.taskdefs.Property.setFile and org.apache.tools.ant.taskdefs.Property.setResource.
• Adds models for request handlers using the org.lastaflute.web web framework.

2.0.0

Breaking Changes

• The Java extractor no longer supports the SEMMLE_DIST legacy environment variable.

Deprecated APIs

• The predicate isAndroid from the module semmle.code.java.security.AndroidCertificatePinningQuery has been deprecated. Use semmle.code.java.frameworks.android.Android::inAndroidApplication(File) instead.

New Features

• Kotlin support is now out of beta, and generally available
• Kotlin versions up to 2.0.2x are now supported.

Minor Analysis Improvements

• Added a path-injection sink for hudson.FilePath.exists().
• Added summary models for org.apache.commons.io.IOUtils.toByteArray.
• Java build-mode none analyses now only report a warning on the CodeQL status page when there are significant analysis problems-- defined as 5% of expressions lacking a type, or 5% of call targets being unknown. Other messages reported on the status page are downgraded from warnings to notes and so are less prominent, but are still available for review.

1.1.2

Minor Analysis Improvements

• Added models for the following packages:

  • io.undertow.server.handlers.resource
  • jakarta.faces.context
  • javax.faces.context
  • javax.servlet
  • org.jboss.vfs
  • org.springframework.core.io

• A bug has been fixed in the heuristic identification of uncertain control flow, which is used to filter data flow in order to improve performance and reduce false positives. This fix means that slightly more code is identified and hence pruned from data flow.

• Excluded reverse DNS from the loopback address as a source of untrusted data.

Bug Fixes

• Support for codeql test run for Kotlin sources has been fixed.

1.1.1

No user-facing changes.

1.1.0

Major Analysis Improvements

• The precision of virtual dispatch has been improved. This increases precision in general for all data flow queries.

Minor Analysis Improvements

• Support for Eclipse Compiler for Java (ecj) has been fixed to work with (a) runs that don't pass -noExit and (b) runs that use post-Java-9 command-line arguments.

1.0.0

Breaking Changes

• CodeQL package management is now generally available, and all GitHub-produced CodeQL packages have had their version numbers increased to 1.0.0.

Major Analysis Improvements

• Added support for data flow through side-effects on static fields. For example, when a static field containing an array is updated.

Minor Analysis Improvements

• JDK version detection based on Gradle projects has been improved. Java extraction using build-modes autobuild or none is more likely to pick an appropriate JDK version, particularly when the Android Gradle Plugin or Spring Boot Plugin are in use.

0.11.0

Breaking Changes

• The Java extractor no longer supports the ODASA_JAVA_LAYOUT, ODASA_TOOLS and ODASA_HOME legacy environment variables.
• The Java extractor no longer supports the ODASA_BUILD_ERROR_DIR legacy environment variable.

0.10.0

Breaking Changes

• Deleted the deprecated AssignLShiftExpr, AssignRShiftExpr, AssignURShiftExpr, LShiftExpr, RShiftExpr, and URShiftExpr aliases.

0.9.1

Minor Analysis Improvements

• About 6,700 summary models and 6,800 neutral summary models for the JDK that were generated using data flow have been added. This may lead to new alerts being reported.

0.9.0

Breaking Changes

• The Java extractor no longer supports the ODASA_SNAPSHOT legacy environment variable.

Minor Analysis Improvements

• Increased the precision of some dataflow models of the class java.net.URL by distinguishing the parts of a URL.
• The Java extractor and QL libraries now support Java 22, including support for anonymous variables, lambda parameters and patterns.
• Pattern cases with multiple patterns and that fall through to or from other pattern cases are now supported. The PatternCase class gains the new getPatternAtIndex and getAPattern predicates, and deprecates getPattern.
• Added a path-injection sink for the open methods of the android.os.ParcelFileDescriptor class.

0.8.12

No user-facing changes.

0.8.11

No user-facing changes.

0.8.10

Minor Analysis Improvements

• Java expressions with erroneous types (e.g. the result of a call whose callee couldn't be resolved during extraction) are now given a CodeQL ErrorType more often.

Bug Fixes

• Fixed the Java autobuilder overriding the version of Maven used by a project when the Maven wrapper mvnw is in use and the maven-wrapper.jar file is not present in the repository.
• Some flow steps related to android.text.Editable.toString that were accidentally disabled have been re-enabled.

0.8.9

Deprecated APIs

• The PathCreation class in PathCreation.qll has been deprecated.

Minor Analysis Improvements

• An extension point for sanitizers of the query java/unvalidated-url-redirection has been added.

• Added models for the following packages:

  • java.io
  • java.lang
  • java.net
  • java.net.http
  • java.nio.file
  • java.util.zip
  • javax.servlet
  • org.apache.commons.io
  • org.apache.hadoop.fs
  • org.apache.hadoop.fs.s3a
  • org.eclipse.jetty.client
  • org.gradle.api.file

0.8.8

Minor Analysis Improvements

• Added models for the following packages:

  • com.fasterxml.jackson.databind
  • javax.servlet

• Added the java.util.Date and java.util.UUID classes to the list of types in the SimpleTypeSanitizer class in semmle.code.java.security.Sanitizers.

0.8.7

New Features

• Added a new library semmle.code.java.security.Sanitizers which contains a new sanitizer class SimpleTypeSanitizer, which represents nodes which cannot realistically carry taint for most queries (e.g. primitives, their boxed equivalents, and numeric types).
• Converted definitions of isBarrier and sanitizer classes to use SimpleTypeSanitizer instead of checking if node.getType() is PrimitiveType or BoxedType.

Minor Analysis Improvements

• Deleted many deprecated predicates and classes with uppercase EJB, JMX, NFE, DNS etc. in their names. Use the PascalCased versions instead.
• Deleted the deprecated semmle/code/java/security/OverlyLargeRangeQuery.qll, semmle/code/java/security/regexp/ExponentialBackTracking.qll, semmle/code/java/security/regexp/NfaUtils.qll, and semmle/code/java/security/regexp/NfaUtils.qll files.
• Improved models for java.lang.Throwable and java.lang.Exception, and the valueOf method of java.lang.String.
• Added taint tracking for the following GSON methods:
  • com.google.gson.stream.JsonReader constructor
  • com.google.gson.stream.JsonWriter constructor
  • com.google.gson.JsonObject.getAsJsonArray
  • com.google.gson.JsonObject.getAsJsonObject
  • com.google.gson.JsonObject.getAsJsonPrimitive
  • com.google.gson.JsonParser.parseReader
  • com.google.gson.JsonParser.parseString
• Added a dataflow model for java.awt.Desktop.browse(URI).

Bug Fixes

• Fixed regular expressions containing flags not being parsed correctly in some cases.

0.8.6

Deprecated APIs

• Imports of the old dataflow libraries (e.g. semmle.code.java.dataflow.DataFlow2) have been deprecated in the libraries under the semmle.code.java.security namespace.

Minor Analysis Improvements

• Added the Map#replace and Map#replaceAll methods to the MapMutator class in semmle.code.java.Maps.

• Taint tracking now understands Kotlin's Array.get and Array.set methods.

• Added a sink model for the createRelative method of the org.springframework.core.io.Resource interface.

• Added source models for methods of the org.springframework.web.util.UrlPathHelper class and removed their taint flow models.

• Added models for the following packages:

  • com.google.common.io
  • hudson
  • hudson.console
  • java.lang
  • java.net
  • java.util.logging
  • javax.imageio.stream
  • org.apache.commons.io
  • org.apache.hadoop.hive.ql.exec
  • org.apache.hadoop.hive.ql.metadata
  • org.apache.tools.ant.taskdefs

• Added models for the following packages:

  • com.alibaba.druid.sql.repository
  • jakarta.persistence
  • jakarta.persistence.criteria
  • liquibase.database.jvm
  • liquibase.statement.core
  • org.apache.ibatis.mapping
  • org.keycloak.models.map.storage

0.8.5

No user-facing changes.

0.8.4

Minor Analysis Improvements

• The diagnostic query java/diagnostics/successfully-extracted-files, and therefore the Code Scanning UI measure of scanned Java files, now considers any Java file seen during extraction, even one with some errors, to be extracted / scanned.
• Switch cases using binding patterns and case null[, default] are now supported. Classes PatternCase and NullDefaultCase are introduced to represent new kinds of case statement.
• Both switch cases and instanceof expressions using record patterns are now supported. The new class RecordPatternExpr is introduced to represent record patterns, and InstanceOfExpr gains getPattern to replace getLocalVariableDeclExpr.
• The control-flow graph and therefore dominance information regarding switch blocks in statement context but with an expression rule (e.g. switch(...) { case 1 -> System.out.println("Hello world!") }) has been fixed. This reduces false positives and negatives from various queries relating to functions featuring such statements.

0.8.3

Deprecated APIs

• In SensitiveApi.qll, javaApiCallablePasswordParam, javaApiCallableUsernameParam, javaApiCallableCryptoKeyParam, and otherApiCallableCredentialParam predicates have been deprecated. They have been replaced with a new class CredentialsSinkNode and its child classes PasswordSink, UsernameSink, and CryptoKeySink. The predicates have been changed to using the new classes, so there may be minor changes in results relying on these predicates.

Minor Analysis Improvements

• The types java.util.SequencedCollection, SequencedSet and SequencedMap, as well as the related Collections.unmodifiableSequenced* methods are now modelled. This means alerts may be raised relating to data flow through these types and methods.

0.8.2

Minor Analysis Improvements

• Java classes MethodAccess, LValue and RValue were renamed to MethodCall, VarWrite and VarRead respectively, along with related predicates and class names. The old names remain usable for the time being but are deprecated and should be replaced.

• New class NewClassExpr was added to represent specifically an explicit new ClassName(...) invocation, in contrast to ClassInstanceExpr which also includes expressions that implicitly instantiate classes, such as defining a lambda or taking a method reference.

• Added up to date models related to Spring Framework 6's org.springframework.http.ResponseEntity.

• Added models for the following packages:

  • com.alibaba.fastjson2
  • javax.management
  • org.apache.http.client.utils

0.8.1

New Features

• Added predicate MemberRefExpr::getReceiverExpr

Minor Analysis Improvements

• The isBarrier, isBarrierIn, isBarrierOut, and isAdditionalFlowStep methods of the taint-tracking configurations for local queries in the ArithmeticTaintedLocalQuery, ExternallyControlledFormatStringLocalQuery, ImproperValidationOfArrayIndexQuery, NumericCastTaintedQuery, ResponseSplittingLocalQuery, SqlTaintedLocalQuery, and XssLocalQuery libraries have been changed to match their remote counterpart configurations.
• Deleted the deprecated isBarrierGuard predicate from the dataflow library and its uses, use isBarrier and the BarrierGuard module instead.
• Deleted the deprecated getAValue predicate from the Annotation class.
• Deleted the deprecated alias FloatingPointLiteral, use FloatLiteral instead.
• Deleted the deprecated getASuppressedWarningLiteral predicate from the SuppressWarningsAnnotation class.
• Deleted the deprecated getATargetExpression predicate form the TargetAnnotation class.
• Deleted the deprecated getRetentionPolicyExpression predicate from the RetentionAnnotation class.
• Deleted the deprecated conditionCheck predicate from Preconditions.qll.
• Deleted the deprecated semmle.code.java.security.performance folder, use semmle.code.java.security.regexp instead.
• Deleted the deprecated ExternalAPI class from ExternalApi.qll, use ExternalApi instead.
• Modified the EnvInput class in semmle.code.java.dataflow.FlowSources to include environment and file source nodes. There are no changes to results unless you add source models using the environment or file source kinds.
• Added environment source models for the following methods:
  • java.lang.System#getenv
  • java.lang.System#getProperties
  • java.lang.System#getProperty
  • java.util.Properties#get
  • java.util.Properties#getProperty
• Added file source models for the following methods:
  • the java.io.FileInputStream constructor
  • hudson.FilePath#newInputStreamDenyingSymlinkAsNeeded
  • hudson.FilePath#openInputStream
  • hudson.FilePath#read
  • hudson.FilePath#readFromOffset
  • hudson.FilePath#readToString
• Modified the DatabaseInput class in semmle.code.java.dataflow.FlowSources to include database source nodes. There are no changes to results unless you add source models using the database source kind.
• Added database source models for the following method:
  • java.sql.ResultSet#getString

0.8.0

New Features

• Kotlin versions up to 1.9.20 are now supported.

Minor Analysis Improvements

• Fixed a control-flow bug where case rule statements would incorrectly include a fall-through edge.
• Added support for default cases as proper guards in switch expressions to match switch statements.
• Improved the class ArithExpr of the Overflow.qll module to also include compound operators. Because of this, new alerts may be raised in queries related to overflows/underflows.
• Added new dataflow models for the Apache CXF framework.
• Regular expressions containing multiple parse mode flags are now interpretted correctly. For example "(?is)abc.*" with both the i and s flags.

Bug Fixes

• The regular expressions library no longer incorrectly matches mode flag characters against the input.

0.7.5

No user-facing changes.

0.7.4

New Features

• Kotlin versions up to 1.9.10 are now supported.

Minor Analysis Improvements

• Fixed the MaD signature specifications to use proper nested type names.
• Added new sanitizer to Java command injection model
• Added more dataflow models for JAX-RS.
• The predicate JaxWsEndpoint::getARemoteMethod no longer requires the result to be annotated with @WebMethod. Instead, the requirements listed in the JAX-RPC Specification 1.1 for required parameter and return types are used. Applications using JAX-RS may see an increase in results.

0.7.3

Major Analysis Improvements

• Improved support for flow through captured variables that properly adheres to inter-procedural control flow.

Minor Analysis Improvements

• Modified the getSecureAlgorithmName predicate in Encryption.qll to also include SHA-256 and SHA-512. Previously only the versions of the names without dashes were considered secure.
• Add support for WithElement and WithoutElement for MaD access paths.

0.7.2

New Features

• A Diagnostic.getCompilationInfo() predicate has been added.

Minor Analysis Improvements

• Fixed a typo in the StdlibRandomSource class in RandomDataSource.qll, which caused the class to improperly model calls to the nextBytes method. Queries relying on StdlibRandomSource may see an increase in results.
• Improved the precision of virtual dispatch of java.io.InputStream methods. Now, calls to these methods will not dispatch to arbitrary implementations of InputStream if there is a high-confidence alternative (like a models-as-data summary).
• Added more dataflow steps for java.io.InputStreams that wrap other java.io.InputStreams.
• Added models for the Struts 2 framework.
• Improved the modeling of Struts 2 sources of untrusted data by tainting the whole object graph of the objects unmarshaled from an HTTP request.

0.7.1

New Features

• The DataFlow::StateConfigSig signature module has gained default implementations for isBarrier/2 and isAdditionalFlowStep/4. Hence it is no longer needed to provide none() implementations of these predicates if they are not needed.
• A Class.isFileClass() predicate, to identify Kotlin file classes, has been added.

Minor Analysis Improvements

• Data flow configurations can now include a predicate neverSkip(Node node) in order to ensure inclusion of certain nodes in the path explanations. The predicate defaults to the end-points of the additional flow steps provided in the configuration, which means that such steps now always are visible by default in path explanations.

• Added models for Apache Commons Lang3 ToStringBuilder.reflectionToString method.

• Added support for the Kotlin method apply.

• Added models for the following packages:

  • java.io
  • java.lang
  • java.net
  • java.nio.channels
  • java.nio.file
  • java.util.zip
  • okhttp3
  • org.gradle.api.file
  • retrofit2

0.7.0

Deprecated APIs

• The ExecCallable class in ExternalProcess.qll has been deprecated.

Major Analysis Improvements

• The data flow library now performs type strengthening. This increases precision for all data flow queries by excluding paths that can be inferred to be impossible due to incompatible types.

Minor Analysis Improvements

• Added automatically-generated dataflow models for javax.portlet.
• Added a missing summary model for the method java.net.URL.toString.
• Added automatically-generated dataflow models for the following frameworks and libraries:
  • hudson
  • jenkins
  • net.sf.json
  • stapler
• Added more models for the Hudson framework.
• Added more models for the Stapler framework.

0.6.4

No user-facing changes.

0.6.3

New Features

• Kotlin versions up to 1.9.0 are now supported.

Minor Analysis Improvements

• Added flow through the block arguments of kotlin.io.use and kotlin.with.

• Added models for the following packages:

  • com.alibaba.druid.sql
  • com.fasterxml.jackson.databind
  • com.jcraft.jsch
  • io.netty.handler.ssl
  • okhttp3
  • org.antlr.runtime
  • org.fusesource.leveldbjni
  • org.influxdb
  • org.springframework.core.io
  • org.yaml.snakeyaml

• Deleted the deprecated getRHS predicate from the LValue class, use getRhs instead.

• Deleted the deprecated getCFGNode predicate from the SsaVariable class, use getCfgNode instead.

• Deleted many deprecated predicates and classes with uppercase XML, JSON, URL, API, etc. in their names. Use the PascalCased versions instead.

• Added models for the following packages:

  • java.lang
  • java.nio.file

• Added dataflow models for the Gson deserialization library.

• Added models for the following packages:

  • okhttp3

• Added more dataflow models for the Play Framework.

• Modified the models related to java.nio.file.Files.copy so that generic [Input|Output]Stream arguments are not considered file-related sinks.

• Dataflow analysis has a new flow step through constructors of transitive subtypes of java.io.InputStream that wrap an underlying data source. Previously, the step only existed for direct subtypes of java.io.InputStream.

• Path creation sinks modeled in PathCreation.qll have been added to the models-as-data sink kind path-injection.

• Updated the regular expression in the HostnameSanitizer sanitizer in the semmle.code.java.security.RequestForgery library to better detect strings prefixed with a hostname.

• Changed the android-widget Java source kind to remote. Any custom data extensions that use the android-widget source kind will need to be updated accordingly in order to continue working.

• Updated the following Java sink kind names. Any custom data extensions will need to be updated accordingly in order to continue working.

  • sql to sql-injection
  • url-redirect to url-redirection
  • xpath to xpath-injection
  • ssti to template-injection
  • logging to log-injection
  • groovy to groovy-injection
  • jexl to jexl-injection
  • mvel to mvel-injection
  • xslt to xslt-injection
  • ldap to ldap-injection
  • pending-intent-sent to pending-intents
  • intent-start to intent-redirection
  • set-hostname-verifier to hostname-verification
  • header-splitting to response-splitting
  • xss to html-injection and js-injection
  • write-file to file-system-store
  • create-file and read-file to path-injection
  • open-url and jdbc-url to request-forgery

0.6.2

Minor Analysis Improvements

• Added SQL injection sinks for Spring JDBC's NamedParameterJdbcOperations.

• Added models for the following packages:

  • org.apache.hadoop.fs

• Added the ArithmeticCommon.qll library to provide predicates for reasoning about arithmetic operations.

• Added the ArithmeticTaintedLocalQuery.qll library to provide the ArithmeticTaintedLocalOverflowFlow and ArithmeticTaintedLocalUnderflowFlow taint-tracking modules to reason about arithmetic with unvalidated user input.

• Added the ArithmeticTaintedQuery.qll library to provide the RemoteUserInputOverflow and RemoteUserInputUnderflow taint-tracking modules to reason about arithmetic with unvalidated user input.

• Added the ArithmeticUncontrolledQuery.qll library to provide the ArithmeticUncontrolledOverflowFlow and ArithmeticUncontrolledUnderflowFlow taint-tracking modules to reason about arithmetic with uncontrolled user input.

• Added the ArithmeticWithExtremeValuesQuery.qll library to provide the MaxValueFlow and MinValueFlow dataflow modules to reason about arithmetic with extreme values.

• Added the BrokenCryptoAlgorithmQuery.qll library to provide the InsecureCryptoFlow taint-tracking module to reason about broken cryptographic algorithm vulnerabilities.

• Added the ExecTaintedLocalQuery.qll library to provide the LocalUserInputToArgumentToExecFlow taint-tracking module to reason about command injection vulnerabilities caused by local data flow.

• Added the ExternallyControlledFormatStringLocalQuery.qll library to provide the ExternallyControlledFormatStringLocalFlow taint-tracking module to reason about format string vulnerabilities caused by local data flow.

• Added the ImproperValidationOfArrayConstructionCodeSpecifiedQuery.qll library to provide the BoundedFlowSourceFlow dataflow module to reason about improper validation of code-specified sizes used for array construction.

• Added the ImproperValidationOfArrayConstructionLocalQuery.qll library to provide the ImproperValidationOfArrayConstructionLocalFlow taint-tracking module to reason about improper validation of local user-provided sizes used for array construction caused by local data flow.

• Added the ImproperValidationOfArrayConstructionQuery.qll library to provide the ImproperValidationOfArrayConstructionFlow taint-tracking module to reason about improper validation of user-provided size used for array construction.

• Added the ImproperValidationOfArrayIndexCodeSpecifiedQuery.qll library to provide the BoundedFlowSourceFlow data flow module to reason about about improper validation of code-specified array index.

• Added the ImproperValidationOfArrayIndexLocalQuery.qll library to provide the ImproperValidationOfArrayIndexLocalFlow taint-tracking module to reason about improper validation of a local user-provided array index.

• Added the ImproperValidationOfArrayIndexQuery.qll library to provide the ImproperValidationOfArrayIndexFlow taint-tracking module to reason about improper validation of user-provided array index.

• Added the InsecureCookieQuery.qll library to provide the SecureCookieFlow taint-tracking module to reason about insecure cookie vulnerabilities.

• Added the MaybeBrokenCryptoAlgorithmQuery.qll library to provide the InsecureCryptoFlow taint-tracking module to reason about broken cryptographic algorithm vulnerabilities.

• Added the NumericCastTaintedQuery.qll library to provide the NumericCastTaintedFlow taint-tracking module to reason about numeric cast vulnerabilities.

• Added the ResponseSplittingLocalQuery.qll library to provide the ResponseSplittingLocalFlow taint-tracking module to reason about response splitting vulnerabilities caused by local data flow.

• Added the SqlConcatenatedQuery.qll library to provide the UncontrolledStringBuilderSourceFlow taint-tracking module to reason about SQL injection vulnerabilities caused by concatenating untrusted strings.

• Added the SqlTaintedLocalQuery.qll library to provide the LocalUserInputToArgumentToSqlFlow taint-tracking module to reason about SQL injection vulnerabilities caused by local data flow.

• Added the StackTraceExposureQuery.qll library to provide the printsStackExternally, stringifiedStackFlowsExternally, and getMessageFlowsExternally predicates to reason about stack trace exposure vulnerabilities.

• Added the TaintedPermissionQuery.qll library to provide the TaintedPermissionFlow taint-tracking module to reason about tainted permission vulnerabilities.

• Added the TempDirLocalInformationDisclosureQuery.qll library to provide the TempDirSystemGetPropertyToCreate taint-tracking module to reason about local information disclosure vulnerabilities caused by local data flow.

• Added the UnsafeHostnameVerificationQuery.qll library to provide the TrustAllHostnameVerifierFlow taint-tracking module to reason about insecure hostname verification vulnerabilities.

• Added the UrlRedirectLocalQuery.qll library to provide the UrlRedirectLocalFlow taint-tracking module to reason about URL redirection vulnerabilities caused by local data flow.

• Added the UrlRedirectQuery.qll library to provide the UrlRedirectFlow taint-tracking module to reason about URL redirection vulnerabilities.

• Added the XPathInjectionQuery.qll library to provide the XPathInjectionFlow taint-tracking module to reason about XPath injection vulnerabilities.

• Added the XssLocalQuery.qll library to provide the XssLocalFlow taint-tracking module to reason about XSS vulnerabilities caused by local data flow.

• Moved the url-open-stream sink models to experimental and removed url-open-stream as a sink option from the Customizing Library Models for Java documentation.

• Added models for the Apache Commons Net library.

• Updated the neutralModel extensible predicate to include a kind column.

• Added models for the io.jsonwebtoken library.

0.6.1

Deprecated APIs

• The sensitiveResultReceiver predicate in SensitiveResultReceiverQuery.qll has been deprecated and replaced with isSensitiveResultReceiver in order to use the new dataflow API.

Minor Analysis Improvements

• Changed some models of Spring's FileCopyUtils.copy to be path injection sinks instead of summaries.
• Added models for the following packages:
  • java.nio.file
• Added models for Apache HttpComponents versions 4 and 5.
• Added sanitizers that recognize line breaks to the query java/log-injection.
• Added new flow steps for java.util.StringJoiner.

0.6.0

Deprecated APIs

• The execTainted predicate in CommandLineQuery.qll has been deprecated and replaced with the predicate execIsTainted.
• The recently introduced new data flow and taint tracking APIs have had a number of module and predicate renamings. The old APIs remain in place for now.
• The WebViewDubuggingQuery library has been renamed to WebViewDebuggingQuery to fix the typo in the file name. WebViewDubuggingQuery is now deprecated.

New Features

• Predicates Compilation.getExpandedArgument and Compilation.getAnExpandedArgument has been added.

Minor Analysis Improvements

• Fixed a bug in the regular expression used to identify sensitive information in SensitiveActions::getCommonSensitiveInfoRegex. This may affect the results of the queries java/android/sensitive-communication, java/android/sensitive-keyboard-cache, and java/sensitive-log.
• Added a summary model for the java.lang.UnsupportedOperationException(String) constructor.
• The filenames embedded in Compilation.toString() now use / as the path separator on all platforms.
• Added models for the following packages:
  • java.lang
  • java.net
  • java.nio.file
  • java.io
  • java.lang.module
  • org.apache.commons.httpclient.util
  • org.apache.commons.io
  • org.apache.http.client
  • org.eclipse.jetty.client
  • com.google.common.io
  • kotlin.io
• Added the TaintedPathQuery.qll library to provide the TaintedPathFlow and TaintedPathLocalFlow taint-tracking modules to reason about tainted path vulnerabilities.
• Added the ZipSlipQuery.qll library to provide the ZipSlipFlow taint-tracking module to reason about zip-slip vulnerabilities.
• Added the InsecureBeanValidationQuery.qll library to provide the BeanValidationFlow taint-tracking module to reason about bean validation vulnerabilities.
• Added the XssQuery.qll library to provide the XssFlow taint-tracking module to reason about cross site scripting vulnerabilities.
• Added the LdapInjectionQuery.qll library to provide the LdapInjectionFlow taint-tracking module to reason about LDAP injection vulnerabilities.
• Added the ResponseSplittingQuery.qll library to provide the ResponseSplittingFlow taint-tracking module to reason about response splitting vulnerabilities.
• Added the ExternallyControlledFormatStringQuery.qll library to provide the ExternallyControlledFormatStringFlow taint-tracking module to reason about externally controlled format string vulnerabilities.
• Improved the handling of addition in the range analysis. This can cause in minor changes to the results produced by java/index-out-of-bounds and java/constant-comparison.
• A new models as data sink kind command-injection has been added.
• The queries java/command-line-injection and java/concatenated-command-line now can be extended using the command-injection models as data sink kind.
• Added more sink and summary dataflow models for the following packages:
  • java.net
  • java.nio.file
  • javax.imageio.stream
  • javax.naming
  • javax.servlet
  • org.geogebra.web.full.main
  • hudson
  • hudson.cli
  • hudson.lifecycle
  • hudson.model
  • hudson.scm
  • hudson.util
  • hudson.util.io
• Added the extensible abstract class JndiInjectionSanitizer. Now this class can be extended to add more sanitizers to the java/jndi-injection query.
• Added a summary model for the nativeSQL method of the java.sql.Connection interface.
• Added sink and summary dataflow models for the Jenkins and Netty frameworks.
• The Models as Data syntax for selecting the qualifier has been changed from -1 to this (e.g. Argument[-1] is now written as Argument[this]).
• Added sources and flow step models for the Netty framework up to version 4.1.
• Added more dataflow models for frequently-used JDK APIs.

Bug Fixes

• Fixed some accidental predicate visibility in the backwards-compatible wrapper for data flow configurations. In particular DataFlow::hasFlowPath, DataFlow::hasFlow, DataFlow::hasFlowTo, and DataFlow::hasFlowToExpr were accidentally exposed in a single version.

0.5.6

No user-facing changes.

0.5.5

New Features

• Added support for merging two PathGraphs via disjoint union to allow results from multiple data flow computations in a single path-problem query.

Major Analysis Improvements

• Removed low-confidence call edges to known neutral call targets from the call graph used in data flow analysis. This includes, for example, custom List.contains implementations when the best inferrable type at the call site is simply List.
• Added more sink and summary dataflow models for the following packages:
  • java.io
  • java.lang
  • java.sql
  • javafx.scene.web
  • org.apache.commons.compress.archivers.tar
  • org.apache.http.client.utils
  • org.codehaus.cargo.container.installer
• The main data flow and taint tracking APIs have been changed. The old APIs remain in place for now and translate to the new through a backwards-compatible wrapper. If multiple configurations are in scope simultaneously, then this may affect results slightly. The new API is quite similar to the old, but makes use of a configuration module instead of a configuration class.

Minor Analysis Improvements

• Deleted the deprecated getPath and getFolder predicates from the XmlFile class.
• Deleted the deprecated getRepresentedString predicate from the StringLiteral class.
• Deleted the deprecated ServletWriterSource class.
• Deleted the deprecated getGroupID, getArtefactID, and artefactMatches predicates from the MavenRepoJar class.

0.5.4

Minor Analysis Improvements

• Added new sinks for java/hardcoded-credential-api-call to identify the use of hardcoded secrets in the creation and verification of JWT tokens using com.auth0.jwt. These sinks are from an experimental query submitted by @luchua.
• The Java extractor now supports builds against JDK 20.
• The query java/hardcoded-credential-api-call now recognizes methods that accept user and password from the SQLServerDataSource class of the Microsoft JDBC Driver for SQL Server.

0.5.3

New Features

• Kotlin versions up to 1.8.20 are now supported.

Minor Analysis Improvements

• Removed the first argument of java.nio.file.Files#createTempDirectory(String,FileAttribute[]) as a "create-file" sink.
• Added the first argument of java.nio.file.Files#copy as a "read-file" sink for the java/path-injection query.
• The data flow library now disregards flow through code that is dead based on some basic constant propagation, for example, guards like if (1+1>3).

0.5.2

Minor Analysis Improvements

• Added sink models for the createQuery, createNativeQuery, and createSQLQuery methods of the org.hibernate.query.QueryProducer interface.

0.5.1

Minor Analysis Improvements

• Added sink models for the constructors of org.springframework.jdbc.object.MappingSqlQuery and org.springframework.jdbc.object.MappingSqlQueryWithParameters.
• Added more dataflow models for frequently-used JDK APIs.
• Removed summary model for java.lang.String#endsWith(String) and added neutral model for this API.
• Added additional taint step for java.lang.String#endsWith(String) to ConditionalBypassFlowConfig.
• Added AllowContentAccessMethod to represent the setAllowContentAccess method of the android.webkit.WebSettings class.
• Added an external flow source for the parameters of methods annotated with android.webkit.JavascriptInterface.

0.5.0

Minor Analysis Improvements

• Added more dataflow models for frequently-used JDK APIs.
• The extraction of Kotlin extension methods has been improved when default parameter values are present. The dispatch and extension receiver parameters are extracted in the correct order. The ExtensionMethod::getExtensionReceiverParameterIndex predicate has been introduced to facilitate getting the correct extension parameter index.
• The query java/insecure-cookie now uses global dataflow to track secure cookies being set to the HTTP response object.
• The library PathSanitizer.qll has been improved to detect more path validation patterns in Kotlin.
• Models as Data models for Java are defined as data extensions instead of being inlined in the code. New models should be added in the lib/ext folder.
• Added a taint model for the method java.nio.file.Path.getParent.
• Fixed a problem in the taint model for the method java.nio.file.Paths.get.
• Deleted the deprecated LocalClassDeclStmtNode and LocalClassDeclStmt classes from PrintAst.qll and Statement.qll respectively.
• Deleted the deprecated getLocalClass predicate from LocalTypeDeclStmt, and the deprecated getLocalClassDeclStmt predicate from LocalClassOrInterface.
• Added support for Android Manifest <activity-aliases> elements in data flow sources.

Bug Fixes

• We now correctly handle empty block comments, like /**/. Previously these could be mistaken for Javadoc comments and led to attribution of Javadoc tags to the wrong declaration.

0.4.6

No user-facing changes.

0.4.5

No user-facing changes.

0.4.4

New Features

• Kotlin support is now in beta. This means that Java analyses will also include Kotlin code by default. Kotlin support can be disabled by setting CODEQL_EXTRACTOR_JAVA_AGENT_DISABLE_KOTLIN to true in the environment.
• The new string Compilation.getInfo(string) predicate provides access to some information about compilations.

Minor Analysis Improvements

• The ReDoS libraries in semmle.code.java.security.regexp has been moved to a shared pack inside the shared/ folder, and the previous location has been deprecated.
• Added data flow summaries for tainted Android intents sent to activities via Activity.startActivities.

0.4.3

No user-facing changes.

0.4.2

Deprecated APIs

• Deprecated ContextStartActivityMethod. Use StartActivityMethod instead.

New Features

• Added a new predicate, hasIncompletePermissions, in the AndroidProviderXmlElement class. This predicate detects if a provider element does not provide both read and write permissions.

Minor Analysis Improvements

• Added support for common patterns involving Stream.collect and common collectors like Collectors.toList().
• The class TypeVariable now also extends Modifiable.
• Added data flow steps for tainted Android intents that are sent to services and receivers.
• Improved the data flow step for tainted Android intents that are sent to activities so that more cases are covered.

0.4.1

Minor Analysis Improvements

• Added external flow sources for the intents received in exported Android services.

0.4.0

Breaking Changes

• The Member.getQualifiedName() predicate result now includes the qualified name of the declaring type.

Deprecated APIs

• The predicate Annotation.getAValue() has been deprecated because it might lead to obtaining the value of the wrong annotation element by accident. getValue(string) (or one of the value type specific predicates) should be used to explicitly specify the name of the annotation element.
• The predicate Annotation.getAValue(string) has been renamed to getAnArrayValue(string).
• The predicate SuppressWarningsAnnotation.getASuppressedWarningLiteral() has been deprecated because it unnecessarily restricts the result type; getASuppressedWarning() should be used instead.
• The predicates TargetAnnotation.getATargetExpression() and RetentionAnnotation.getRetentionPolicyExpression() have been deprecated because getting the enum constant read expression is rarely useful, instead the corresponding predicates for getting the name of the referenced enum constants should be used.

New Features

• Added a new predicate, allowsBackup, in the AndroidApplicationXmlElement class. This predicate detects if the application element does not disable the android:allowBackup attribute.
• The predicates of the CodeQL class Annotation have been improved:
  • Convenience value type specific predicates have been added, such as getEnumConstantValue(string) or getStringValue(string).
  • Convenience predicates for elements with array values have been added, such as getAnEnumConstantArrayValue(string). While the behavior of the existing predicates has not changed, usage of them should be reviewed (or replaced with the newly added predicate) to make sure they work correctly for elements with array values.
  • Some internal CodeQL usage of the Annotation predicates has been adjusted and corrected; this might affect the results of some queries.
• New predicates have been added to the CodeQL class Annotatable to support getting declared and associated annotations. As part of that, hasAnnotation() has been changed to also consider inherited annotations, to be consistent with hasAnnotation(string, string) and getAnAnnotation(). The newly added predicate hasDeclaredAnnotation() can be used as replacement for the old functionality.
• New predicates have been added to the CodeQL class AnnotationType to simplify getting information about usage of JDK meta-annotations, such as @Retention.

Major Analysis Improvements

• The virtual dispatch relation used in data flow now favors summary models over source code for dispatch to interface methods from java.util unless there is evidence that a specific source implementation is reachable. This should provide increased precision for any projects that include, for example, custom List or Map implementations.

Minor Analysis Improvements

• Added new sinks to the query java/android/implicit-pendingintents to take into account the classes androidx.core.app.NotificationManagerCompat and androidx.core.app.AlarmManagerCompat.
• Added new flow steps for androidx.core.app.NotificationCompat and its inner classes.
• Added flow sinks, sources and summaries for the Kotlin standard library.
• Added flow summary for org.springframework.data.repository.CrudRepository.save().
• Added new flow steps for the following Android classes:
  • android.content.ContentResolver
  • android.content.ContentProviderClient
  • android.content.ContentProviderOperation
  • android.content.ContentProviderOperation$Builder
  • android.content.ContentProviderResult
  • android.database.Cursor
• Added taint flow models for the java.lang.String.(charAt|getBytes) methods.
• Improved taint flow models for the java.lang.String.(replace|replaceFirst|replaceAll) methods. Additional results may be found where users do not properly sanitize their inputs.

Bug Fixes

• Fixed an issue in the taint tracking analysis where implicit reads were not allowed by default in sinks or additional taint steps that used flow states.

0.3.5

0.3.4

Deprecated APIs

• Many classes/predicates/modules with upper-case acronyms in their name have been renamed to follow our style-guide. The old name still exists as a deprecated alias.
• The utility files previously in the semmle.code.java.security.performance package have been moved to the semmle.code.java.security.regexp package.
  The previous files still exist as deprecated aliases.

New Features

• Added a new predicate, requiresPermissions, in the AndroidComponentXmlElement and AndroidApplicationXmlElement classes to detect if the element has explicitly set a value for its android:permission attribute.
• Added a new predicate, hasAnIntentFilterElement, in the AndroidComponentXmlElement class to detect if a component contains an intent filter element.
• Added a new predicate, hasExportedAttribute, in the AndroidComponentXmlElement class to detect if a component has an android:exported attribute.
• Added a new class, AndroidCategoryXmlElement, to represent a category element in an Android manifest file.
• Added a new predicate, getACategoryElement, in the AndroidIntentFilterXmlElement class to get a category element of an intent filter.
• Added a new predicate, isInBuildDirectory, in the AndroidManifestXmlFile class. This predicate detects if the manifest file is located in a build directory.
• Added a new predicate, isDebuggable, in the AndroidApplicationXmlElement class. This predicate detects if the application element has its android:debuggable attribute enabled.

Minor Analysis Improvements

• Added new flow steps for the classes java.nio.file.Path and java.nio.file.Paths.
• The class AndroidFragment now also models the Android Jetpack version of the Fragment class (androidx.fragment.app.Fragment).
• Java 19 builds can now be extracted. There are no non-preview new language features in this release, so the only user-visible change is that the CodeQL extractor will now correctly trace compilations using the JDK 19 release of javac.
• Classes and methods that are seen with several different paths during the extraction process (for example, packaged into different JAR files) now report an arbitrarily selected location via their getLocation and hasLocationInfo predicates, rather than reporting all of them. This may lead to reduced alert duplication.
• The query java/hardcoded-credential-api-call now recognises methods that consume usernames, passwords and keys from the JSch, Ganymed, Apache SSHD, sshj, Trilead SSH-2, Apache FTPClient and MongoDB projects.

0.3.3

Minor Analysis Improvements

• Improved analysis of the Android class AsyncTask so that data can properly flow through its methods according to the life-cycle steps described here: https://developer.android.com/reference/android/os/AsyncTask#the-4-steps.
• Added a data-flow model for the setProperty method of java.util.Properties. Additional results may be found where relevant data is stored in and then retrieved from a Properties instance.

0.3.2

New Features

• The QL predicate Expr::getUnderlyingExpr has been added. It can be used to look through casts and not-null expressions and obtain the underlying expression to which they apply.

Minor Analysis Improvements

• The JUnit5 version of AssertNotNull is now recognized, which removes related false positives in the nullness queries.
• Added data flow models for java.util.Scanner.

0.3.1

New Features

• Added an ErrorType class. An instance of this class will be used if an extractor is unable to extract a type, or if an up/downgrade script is unable to provide a type.

Minor Analysis Improvements

• Added data-flow models for java.util.Properties. Additional results may be found where relevant data is stored in and then retrieved from a Properties instance.
• Added Modifier.isInline().
• Removed Kotlin-specific database and QL structures for loops and break/continue statements. The Kotlin extractor was changed to reuse the Java structures for these constructs.
• Added additional flow sources for uses of external storage on Android.

0.3.0

Deprecated APIs

• The BarrierGuard class has been deprecated. Such barriers and sanitizers can now instead be created using the new BarrierGuard parameterized module.

Minor Analysis Improvements

Added a flow step for String.valueOf calls on tainted android.text.Editable objects.

0.2.3

0.2.2

Deprecated APIs

• The QL class FloatingPointLiteral has been renamed to FloatLiteral.

Minor Analysis Improvements

• Fixed a sanitizer of the query java/android/intent-redirection. Now, for an intent to be considered safe against intent redirection, both its package name and class name must be checked.

0.2.1

New Features

• A number of new classes and methods related to the upcoming Kotlin support have been added. These are not yet stable, as Kotlin support is still under development.
  • File::isSourceFile
  • File::isJavaSourceFile
  • File::isKotlinSourceFile
  • Member::getKotlinType
  • Element::isCompilerGenerated
  • Expr::getKotlinType
  • LambdaExpr::isKotlinFunctionN
  • Callable::getReturnKotlinType
  • Callable::getParameterKotlinType
  • Method::isLocal
  • Method::getKotlinName
  • Field::getKotlinType
  • Modifiable::isSealedKotlin
  • Modifiable::isInternal
  • Variable::getKotlinType
  • LocalVariableDecl::getKotlinType
  • Parameter::getKotlinType
  • Parameter::isExtensionParameter
  • Compilation class
  • Diagnostic class
  • KtInitializerAssignExpr class
  • ValueEQExpr class
  • ValueNEExpr class
  • ValueOrReferenceEqualsExpr class
  • ValueOrReferenceNotEqualsExpr class
  • ReferenceEqualityTest class
  • CastingExpr class
  • SafeCastExpr class
  • ImplicitCastExpr class
  • ImplicitNotNullExpr class
  • ImplicitCoercionToUnitExpr class
  • UnsafeCoerceExpr class
  • PropertyRefExpr class
  • NotInstanceOfExpr class
  • ExtensionReceiverAccess class
  • WhenExpr class
  • WhenBranch class
  • ClassExpr class
  • StmtExpr class
  • StringTemplateExpr class
  • NotNullExpr class
  • TypeNullPointerException class
  • KtComment class
  • KtCommentSection class
  • KotlinType class
  • KotlinNullableType class
  • KotlinNotnullType class
  • KotlinTypeAlias class
  • Property class
  • DelegatedProperty class
  • ExtensionMethod class
  • KtInitializerNode class
  • KtLoopStmt class
  • KtBreakContinueStmt class
  • KtBreakStmt class
  • KtContinueStmt class
  • ClassObject class
  • CompanionObject class
  • LiveLiteral class
  • LiveLiteralMethod class
  • CastConversionContext renamed to CastingConversionContext
• The QL class ValueDiscardingExpr has been added, representing expressions for which the value of the expression as a whole is discarded.

Minor Analysis Improvements

• Added models for the libraries OkHttp and Retrofit.
• Add taint models for the following File methods:
  • File::getAbsoluteFile
  • File::getCanonicalFile
  • File::getAbsolutePath
  • File::getCanonicalPath
• Added a flow step for toString calls on tainted android.text.Editable objects.
• Added a data flow step for tainted Android intents that are sent to other activities and accessed there via getIntent().
• Added modeling of MyBatis (org.apache.ibatis) Providers, resulting in additional sinks for the queries java/ognl-injection, java/sql-injection, java/sql-injection-local and java/concatenated-sql-query.

0.2.0

Breaking Changes

• The signature of allowImplicitRead on DataFlow::Configuration and TaintTracking::Configuration has changed from allowImplicitRead(DataFlow::Node node, DataFlow::Content c) to allowImplicitRead(DataFlow::Node node, DataFlow::ContentSet c).

Minor Analysis Improvements

• Improved the data flow support for the Android class SharedPreferences$Editor. Specifically, the fluent logic of some of its methods is now taken into account when calculating data flow.
  • Added flow sources and steps for JMS versions 1 and 2.
  • Added flow sources and steps for RabbitMQ.
  • Added flow steps for java.io.DataInput and java.io.ObjectInput implementations.
• Added data-flow models for the Spring Framework component spring-beans.

Bug Fixes

• The QL class JumpStmt has been made the superclass of BreakStmt, ContinueStmt and YieldStmt. This allows directly using its inherited predicates without having to explicitly cast to JumpStmt first.

0.1.0

Breaking Changes

• The recently added flow-state versions of isBarrierIn, isBarrierOut, isSanitizerIn, and isSanitizerOut in the data flow and taint tracking libraries have been removed.
• The getUrl predicate of DeclaredRepository in MavenPom.qll has been renamed to getRepositoryUrl.

New Features

• There are now QL classes ErrorExpr and ErrorStmt. These may be generated by upgrade or downgrade scripts when databases cannot be fully converted.

Minor Analysis Improvements

• Added guard precondition support for assertion methods for popular testing libraries (e.g. Junit 4, Junit 5, TestNG).

0.0.13

0.0.12

Breaking Changes

• The flow state variants of isBarrier and isAdditionalFlowStep are no longer exposed in the taint tracking library. The isSanitizer and isAdditionalTaintStep predicates should be used instead.

Deprecated APIs

• Many classes/predicates/modules that had upper-case acronyms have been renamed to follow our style-guide. The old name still exists as a deprecated alias.

New Features

• The data flow and taint tracking libraries have been extended with versions of isBarrierIn, isBarrierOut, and isBarrierGuard, respectively isSanitizerIn, isSanitizerOut, and isSanitizerGuard, that support flow states.

Minor Analysis Improvements

• Added new guards IsWindowsGuard, IsSpecificWindowsVariant, IsUnixGuard, and IsSpecificUnixVariant to detect OS specific guards.
• Added a new predicate getSystemProperty that gets all expressions that retrieve system properties from a variety of sources (eg. alternative JDK API's, Google Guava, Apache Commons, Apache IO, etc.).
• Added support for detection of SSRF via JDBC database URLs, including connections made using the standard library (java.sql), Hikari Connection Pool, JDBI and Spring JDBC.
• Re-removed support for CharacterLiteral from CompileTimeConstantExpr.getStringValue() to restore the convention that that predicate only applies to String-typed constants.
• All deprecated predicates/classes/modules that have been deprecated for over a year have been deleted.

0.0.11

New Features

• Added hasDescendant(RefType anc, Type sub)
• Added RefType.getADescendant()
• Added RefType.getAStrictAncestor()

Minor Analysis Improvements

• Add support for CharacterLiteral in CompileTimeConstantExpr.getStringValue()

0.0.10

New Features

• Added predicates ClassOrInterface.getAPermittedSubtype and isSealed exposing information about sealed classes.

0.0.9

0.0.8

Deprecated APIs

• The codeql/java-upgrades CodeQL pack has been removed. All upgrades scripts have been merged into the codeql/java-all CodeQL pack.

0.0.7

0.0.6

Major Analysis Improvements

• Data flow now propagates taint from remote source Parameter types to read steps of their fields (e.g. tainted.publicField or tainted.getField()). This also applies to their subtypes and the types of their fields, recursively.

0.0.5

Bug Fixes

• CharacterLiteral's getCodePointValue predicate now returns the correct value for UTF-16 surrogates.
• The RangeAnalysis module now properly handles comparisons with Unicode surrogate character literals.

0.0.4

Bug Fixes

• CharacterLiteral's getCodePointValue predicate now returns the correct value for UTF-16 surrogates.
• The RangeAnalysis module and the java/constant-comparison queries no longer raise false alerts regarding comparisons with Unicode surrogate character literals.
• The predicate Method.overrides(Method) was accidentally transitive. This has been fixed. This fix also affects Method.overridesOrInstantiates(Method) and Method.getASourceOverriddenMethod().