https://bz.apache.org/bugzilla/show_bug.cgi?id=66552
Bug ID: 66552 Summary: Depend task does not handle invokeDynamic constant pool entries - java.lang.ClassFormatError: Invalid Constant Pool entry Type 17 Product: Ant Version: 1.10.8 Hardware: PC Status: NEW Severity: normal Priority: P2 Component: Optional Tasks Assignee: notifications@ant.apache.org Reporter: j.michelber...@gmail.com Target Milestone: --- Seems that the depend task does not handle classfiles with the invokeDynamic properly: java.lang.ClassFormatError: Invalid Constant Pool entry Type 17 at org.apache.tools.ant.taskdefs.optional.depend.constantpool.ConstantPoolEntry.readEntry(ConstantPoolEntry.java:179) at org.apache.tools.ant.taskdefs.optional.depend.constantpool.ConstantPool.read(ConstantPool.java:67) at org.apache.tools.ant.taskdefs.optional.depend.ClassFile.read(ClassFile.java:73) at org.apache.tools.ant.taskdefs.optional.depend.AntAnalyzer.determineDependencies(AntAnalyzer.java:78) at org.apache.tools.ant.util.depend.AbstractAnalyzer.getClassDependencies(AbstractAnalyzer.java:105) at org.apache.tools.ant.taskdefs.optional.depend.Depend.determineDependencies(Depend.java:325) at org.apache.tools.ant.taskdefs.optional.depend.Depend.execute(Depend.java:647) ant -version Apache Ant(TM) version 1.10.8 compiled on May 10 2020 java -version openjdk version "17.0.6" 2023-01-17 LTS OpenJDK Runtime Environment (build 17.0.6+10-LTS) OpenJDK 64-Bit Server VM (build 17.0.6+10-LTS, mixed mode, sharing) A quick view in the latest ConstantPoolEntry.java showed, that there is no constant for "Entry Type 17" is defined, so a classfile delivering the 17 ends in the default block fireing the above Exception. The constant seems to be defined since JDK11, but the Exception are not shown building with same Ant and JDK11. https://docs.oracle.com/javase/specs/jvms/se14/html/jvms-4.html#jvms-4.4 Seems JDK17 produces class files using that constants. I have currently no isolated code/script to reproduce. Found an similar issue, but with slight different constant in the bug database. https://bz.apache.org/bugzilla/show_bug.cgi?id=54090 -- You are receiving this mail because: You are the assignee for the bug.