An exception has occurred in the compiler (21-xxxx). Please file a bug against the Java compiler via the Java bug reporting page (https://bugreport.java.com) after checking the Bug Database (https://bugs.java.com) for duplicates. Include your program, the following diagnostic, and the parameters passed to the Java compiler in your report. Thank you.
com.google.common.util.concurrent.ExecutionError: java.lang.NoSuchMethodError: 'com.sun.tools.javac.tree.JCTree$JCExpression com.sun.tools.javac.tree.TreeMaker.Select(com.sun.tools.javac.tree.JCTree$JCExpression, com.sun.tools.javac.code.Symbol)'
	at com.google.common.cache.LocalCache$Segment.get(LocalCache.java:2053)
	at com.google.common.cache.LocalCache.get(LocalCache.java:3966)
	at com.google.common.cache.LocalCache.getOrLoad(LocalCache.java:3989)
	at com.google.common.cache.LocalCache$LocalLoadingCache.get(LocalCache.java:4950)
	at com.google.common.cache.LocalCache$LocalLoadingCache.getUnchecked(LocalCache.java:4956)
	at com.google.errorprone.dataflow.DataFlow.methodDataflow(DataFlow.java:176)
	at com.google.errorprone.dataflow.DataFlow.expressionDataflow(DataFlow.java:236)
	at com.google.errorprone.dataflow.nullnesspropagation.NullnessAnalysis.getNullness(NullnessAnalysis.java:59)
	at com.google.errorprone.bugpatterns.AbstractReferenceEquality.getNullness(AbstractReferenceEquality.java:224)
	at com.google.errorprone.bugpatterns.AbstractReferenceEquality.addFixes(AbstractReferenceEquality.java:128)
	at com.google.errorprone.bugpatterns.AbstractReferenceEquality.matchBinary(AbstractReferenceEquality.java:83)
	at com.google.errorprone.scanner.ErrorProneScanner.processMatchers(ErrorProneScanner.java:449)
	at com.google.errorprone.scanner.ErrorProneScanner.visitBinary(ErrorProneScanner.java:512)
	at com.google.errorprone.scanner.ErrorProneScanner.visitBinary(ErrorProneScanner.java:150)
	at jdk.compiler/com.sun.tools.javac.tree.JCTree$JCBinary.accept(JCTree.java:2186)
	at jdk.compiler/com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:92)
	at com.google.errorprone.scanner.Scanner.scan(Scanner.java:74)
	at com.google.errorprone.scanner.Scanner.scan(Scanner.java:48)
	at jdk.compiler/com.sun.source.util.TreeScanner.visitParenthesized(TreeScanner.java:661)
	at com.google.errorprone.scanner.ErrorProneScanner.visitParenthesized(ErrorProneScanner.java:799)
	at com.google.errorprone.scanner.ErrorProneScanner.visitParenthesized(ErrorProneScanner.java:150)
	at jdk.compiler/com.sun.tools.javac.tree.JCTree$JCParens.accept(JCTree.java:2042)
	at jdk.compiler/com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:92)
	at com.google.errorprone.scanner.Scanner.scan(Scanner.java:74)
	at com.google.errorprone.scanner.Scanner.scan(Scanner.java:48)
	at jdk.compiler/com.sun.source.util.TreeScanner.visitIf(TreeScanner.java:485)
	at com.google.errorprone.scanner.ErrorProneScanner.visitIf(ErrorProneScanner.java:654)
	at com.google.errorprone.scanner.ErrorProneScanner.visitIf(ErrorProneScanner.java:150)
	at jdk.compiler/com.sun.tools.javac.tree.JCTree$JCIf.accept(JCTree.java:1585)
	at jdk.compiler/com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:92)
	at com.google.errorprone.scanner.Scanner.scan(Scanner.java:74)
	at com.google.errorprone.scanner.Scanner.scan(Scanner.java:48)
	at jdk.compiler/com.sun.source.util.TreeScanner.scan(TreeScanner.java:111)
	at jdk.compiler/com.sun.source.util.TreeScanner.visitBlock(TreeScanner.java:272)
	at com.google.errorprone.scanner.ErrorProneScanner.visitBlock(ErrorProneScanner.java:520)
	at com.google.errorprone.scanner.ErrorProneScanner.visitBlock(ErrorProneScanner.java:150)
	at jdk.compiler/com.sun.tools.javac.tree.JCTree$JCBlock.accept(JCTree.java:1100)
	at jdk.compiler/com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:92)
	at com.google.errorprone.scanner.Scanner.scan(Scanner.java:74)
	at com.google.errorprone.scanner.Scanner.scan(Scanner.java:48)
	at jdk.compiler/com.sun.source.util.TreeScanner.scanAndReduce(TreeScanner.java:96)
	at jdk.compiler/com.sun.source.util.TreeScanner.visitTry(TreeScanner.java:435)
	at com.google.errorprone.scanner.ErrorProneScanner.visitTry(ErrorProneScanner.java:845)
	at com.google.errorprone.scanner.ErrorProneScanner.visitTry(ErrorProneScanner.java:150)
	at jdk.compiler/com.sun.tools.javac.tree.JCTree$JCTry.accept(JCTree.java:1480)
	at jdk.compiler/com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:92)
	at com.google.errorprone.scanner.Scanner.scan(Scanner.java:74)
	at com.google.errorprone.scanner.Scanner.scan(Scanner.java:48)
	at jdk.compiler/com.sun.source.util.TreeScanner.scanAndReduce(TreeScanner.java:96)
	at jdk.compiler/com.sun.source.util.TreeScanner.scan(TreeScanner.java:111)
	at jdk.compiler/com.sun.source.util.TreeScanner.visitBlock(TreeScanner.java:272)
	at com.google.errorprone.scanner.ErrorProneScanner.visitBlock(ErrorProneScanner.java:520)
	at com.google.errorprone.scanner.ErrorProneScanner.visitBlock(ErrorProneScanner.java:150)
	at jdk.compiler/com.sun.tools.javac.tree.JCTree$JCBlock.accept(JCTree.java:1100)
	at jdk.compiler/com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:92)
	at com.google.errorprone.scanner.Scanner.scan(Scanner.java:74)
	at com.google.errorprone.scanner.Scanner.scan(Scanner.java:48)
	at jdk.compiler/com.sun.source.util.TreeScanner.scanAndReduce(TreeScanner.java:96)
	at jdk.compiler/com.sun.source.util.TreeScanner.visitMethod(TreeScanner.java:224)
	at com.google.errorprone.scanner.ErrorProneScanner.visitMethod(ErrorProneScanner.java:740)
	at com.google.errorprone.scanner.ErrorProneScanner.visitMethod(ErrorProneScanner.java:150)
	at jdk.compiler/com.sun.tools.javac.tree.JCTree$JCMethodDecl.accept(JCTree.java:944)
	at jdk.compiler/com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:92)
	at com.google.errorprone.scanner.Scanner.scan(Scanner.java:74)
	at com.google.errorprone.scanner.Scanner.scan(Scanner.java:48)
	at jdk.compiler/com.sun.source.util.TreeScanner.scanAndReduce(TreeScanner.java:96)
	at jdk.compiler/com.sun.source.util.TreeScanner.scan(TreeScanner.java:111)
	at jdk.compiler/com.sun.source.util.TreeScanner.scanAndReduce(TreeScanner.java:119)
	at jdk.compiler/com.sun.source.util.TreeScanner.visitClass(TreeScanner.java:203)
	at com.google.errorprone.scanner.ErrorProneScanner.visitClass(ErrorProneScanner.java:548)
	at com.google.errorprone.scanner.ErrorProneScanner.visitClass(ErrorProneScanner.java:150)
	at jdk.compiler/com.sun.tools.javac.tree.JCTree$JCClassDecl.accept(JCTree.java:851)
	at jdk.compiler/com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:92)
	at com.google.errorprone.scanner.Scanner.scan(Scanner.java:74)
	at com.google.errorprone.scanner.Scanner.scan(Scanner.java:48)
	at jdk.compiler/com.sun.source.util.TreeScanner.scan(TreeScanner.java:111)
	at jdk.compiler/com.sun.source.util.TreeScanner.scanAndReduce(TreeScanner.java:119)
	at jdk.compiler/com.sun.source.util.TreeScanner.visitCompilationUnit(TreeScanner.java:152)
	at com.google.errorprone.scanner.ErrorProneScanner.visitCompilationUnit(ErrorProneScanner.java:560)
	at com.google.errorprone.scanner.ErrorProneScanner.visitCompilationUnit(ErrorProneScanner.java:150)
	at jdk.compiler/com.sun.tools.javac.tree.JCTree$JCCompilationUnit.accept(JCTree.java:619)
	at jdk.compiler/com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:66)
	at com.google.errorprone.scanner.Scanner.scan(Scanner.java:58)
	at com.google.errorprone.scanner.ErrorProneScannerTransformer.apply(ErrorProneScannerTransformer.java:43)
	at com.google.errorprone.ErrorProneAnalyzer.finished(ErrorProneAnalyzer.java:156)
	at jdk.compiler/com.sun.tools.javac.api.MultiTaskListener.finished(MultiTaskListener.java:132)
	at jdk.compiler/com.sun.tools.javac.main.JavaCompiler.flow(JavaCompiler.java:1411)
	at jdk.compiler/com.sun.tools.javac.main.JavaCompiler.flow(JavaCompiler.java:1358)
	at jdk.compiler/com.sun.tools.javac.main.JavaCompiler.compile(JavaCompiler.java:950)
	at jdk.compiler/com.sun.tools.javac.main.Main.compile(Main.java:317)
	at jdk.compiler/com.sun.tools.javac.main.Main.compile(Main.java:176)
	at jdk.compiler/com.sun.tools.javac.Main.compile(Main.java:64)
	at jdk.compiler/com.sun.tools.javac.Main.main(Main.java:50)
Caused by: java.lang.NoSuchMethodError: 'com.sun.tools.javac.tree.JCTree$JCExpression com.sun.tools.javac.tree.TreeMaker.Select(com.sun.tools.javac.tree.JCTree$JCExpression, com.sun.tools.javac.code.Symbol)'
	at org.checkerframework.errorprone.javacutil.trees.TreeBuilder.buildIteratorMethodAccess(TreeBuilder.java:122)
	at org.checkerframework.errorprone.dataflow.cfg.builder.CFGTranslationPhaseOne.visitEnhancedForLoop(CFGTranslationPhaseOne.java:2728)
	at org.checkerframework.errorprone.dataflow.cfg.builder.CFGTranslationPhaseOne.visitEnhancedForLoop(CFGTranslationPhaseOne.java:197)
	at jdk.compiler/com.sun.tools.javac.tree.JCTree$JCEnhancedForLoop.accept(JCTree.java:1248)
	at org.checkerframework.errorprone.dataflow.cfg.builder.CFGTranslationPhaseOne.scan(CFGTranslationPhaseOne.java:550)
	at org.checkerframework.errorprone.dataflow.cfg.builder.CFGTranslationPhaseOne.visitBlock(CFGTranslationPhaseOne.java:2206)
	at org.checkerframework.errorprone.dataflow.cfg.builder.CFGTranslationPhaseOne.visitBlock(CFGTranslationPhaseOne.java:197)
	at jdk.compiler/com.sun.tools.javac.tree.JCTree$JCBlock.accept(JCTree.java:1100)
	at org.checkerframework.errorprone.dataflow.cfg.builder.CFGTranslationPhaseOne.scan(CFGTranslationPhaseOne.java:550)
	at org.checkerframework.errorprone.dataflow.cfg.builder.CFGTranslationPhaseOne.visitIf(CFGTranslationPhaseOne.java:3111)
	at org.checkerframework.errorprone.dataflow.cfg.builder.CFGTranslationPhaseOne.visitIf(CFGTranslationPhaseOne.java:197)
	at jdk.compiler/com.sun.tools.javac.tree.JCTree$JCIf.accept(JCTree.java:1585)
	at org.checkerframework.errorprone.dataflow.cfg.builder.CFGTranslationPhaseOne.scan(CFGTranslationPhaseOne.java:550)
	at org.checkerframework.errorprone.dataflow.cfg.builder.CFGTranslationPhaseOne.visitBlock(CFGTranslationPhaseOne.java:2206)
	at org.checkerframework.errorprone.dataflow.cfg.builder.CFGTranslationPhaseOne.visitBlock(CFGTranslationPhaseOne.java:197)
	at jdk.compiler/com.sun.tools.javac.tree.JCTree$JCBlock.accept(JCTree.java:1100)
	at org.checkerframework.errorprone.dataflow.cfg.builder.CFGTranslationPhaseOne.scan(CFGTranslationPhaseOne.java:550)
	at org.checkerframework.errorprone.dataflow.cfg.builder.CFGTranslationPhaseOne.visitTry(CFGTranslationPhaseOne.java:3439)
	at org.checkerframework.errorprone.dataflow.cfg.builder.CFGTranslationPhaseOne.visitTry(CFGTranslationPhaseOne.java:197)
	at jdk.compiler/com.sun.tools.javac.tree.JCTree$JCTry.accept(JCTree.java:1480)
	at org.checkerframework.errorprone.dataflow.cfg.builder.CFGTranslationPhaseOne.scan(CFGTranslationPhaseOne.java:550)
	at org.checkerframework.errorprone.dataflow.cfg.builder.CFGTranslationPhaseOne.visitBlock(CFGTranslationPhaseOne.java:2206)
	at org.checkerframework.errorprone.dataflow.cfg.builder.CFGTranslationPhaseOne.visitBlock(CFGTranslationPhaseOne.java:197)
	at jdk.compiler/com.sun.tools.javac.tree.JCTree$JCBlock.accept(JCTree.java:1100)
	at org.checkerframework.errorprone.dataflow.cfg.builder.CFGTranslationPhaseOne.scan(CFGTranslationPhaseOne.java:550)
	at org.checkerframework.errorprone.dataflow.cfg.builder.CFGTranslationPhaseOne.process(CFGTranslationPhaseOne.java:447)
	at org.checkerframework.errorprone.dataflow.cfg.builder.CFGTranslationPhaseOne.process(CFGTranslationPhaseOne.java:498)
	at org.checkerframework.errorprone.dataflow.cfg.builder.CFGBuilder.build(CFGBuilder.java:70)
	at com.google.errorprone.dataflow.DataFlow$2.load(DataFlow.java:127)
	at com.google.errorprone.dataflow.DataFlow$2.load(DataFlow.java:95)
	at com.google.common.cache.LocalCache$LoadingValueReference.loadFuture(LocalCache.java:3533)
	at com.google.common.cache.LocalCache$Segment.loadSync(LocalCache.java:2282)
	at com.google.common.cache.LocalCache$Segment.lockedGetOrLoad(LocalCache.java:2159)
	at com.google.common.cache.LocalCache$Segment.get(LocalCache.java:2049)
	... 92 more