javac JavacBug.java

The system is out of resources.
Consult the following stack trace for details.
java.lang.StackOverflowError
at jdk.compiler/com.sun.tools.javac.jvm.Code.emitStackMapFrame(Code.java:1366)
at jdk.compiler/com.sun.tools.javac.jvm.Code.emitStackMap(Code.java:1261)
at jdk.compiler/com.sun.tools.javac.jvm.Code.emitop(Code.java:388)
at jdk.compiler/com.sun.tools.javac.jvm.Code.emitop1w(Code.java:938)
at jdk.compiler/com.sun.tools.javac.jvm.Items$LocalItem.store(Items.java:409)
at jdk.compiler/com.sun.tools.javac.jvm.Gen.genTry(Gen.java:1591)
at jdk.compiler/com.sun.tools.javac.jvm.Gen.visitSynchronized(Gen.java:1489)
at jdk.compiler/com.sun.tools.javac.tree.JCTree$JCSynchronized.accept(JCTree.java:1428)
at jdk.compiler/com.sun.tools.javac.jvm.Gen.genDef(Gen.java:588)
at jdk.compiler/com.sun.tools.javac.jvm.Gen.genStat(Gen.java:623)
at jdk.compiler/com.sun.tools.javac.jvm.Gen.genStat(Gen.java:609)
at jdk.compiler/com.sun.tools.javac.jvm.Gen.genStats(Gen.java:660)
at jdk.compiler/com.sun.tools.javac.jvm.Gen.doVisitBlock(Gen.java:1102)
at jdk.compiler/com.sun.tools.javac.jvm.Gen.visitBlock(Gen.java:1095)
at jdk.compiler/com.sun.tools.javac.tree.JCTree$JCBlock.accept(JCTree.java:1092)

I bisected this and it seems to be a regression in JDK 20 b27. Relevant changes to javac:
https://bugs.openjdk.org/issues/?jql=project%20%3D%20JDK%20AND%20resolution%20%3D%20Fixed%20AND%20fixVersion%20%3D%20%2220%22%20AND%20component%20%3D%20tools%20AND%20%22Resolved%20In%20Build%22%20%3D%20b27%20AND%20Subcomponent%20%3D%20javac%20ORDER%20BY%20resolved%20DESC