P.S. > On 29. 1. 2021, at 6:50 PM, o...@ocs.cz wrote: > Nevertheless, there's no JAVA_HOME at all on my Catalina either, and groovy > compiles Java in there without a glitch. How comes?
Hmmm... I wonder. Perhaps the groovy compiler is smart enough to call /usr/libexec/java_home itself if the JAVA_HOME variable is empty; it then gets the wrong value and fails. Makes sense. > And also, is there a way to set the thing up properly without fixing the path > in my build scripts? The java_home thing returns a completely wrong path > without the -V switch: > === > 1 ocs ~> /usr/libexec/java_home > /Library/Internet Plug-Ins/JavaAppletPlugin.plugin/Contents/Home > 2 ocs ~> > === If it is indeed so, the question could be re-phrased “How to make the /usr/libexec/java_home tool to return the proper value?“ Note Java 8 is indeed the default; I completely forgot there used to be 13, which we can't use anyway: === 5 ocs ~> /usr/libexec/java_home /Library/Internet Plug-Ins/JavaAppletPlugin.plugin/Contents/Home 6 ocs ~> java -version java version "1.8.0_181" Java(TM) SE Runtime Environment (build 1.8.0_181-b13) Java HotSpot(TM) 64-Bit Server VM (build 25.181-b13, mixed mode) 7 ocs ~> === Strangely enough, with Catalina on the same machine with both the Javas this was not a problem either. Weird. Thanks a lot, OC >> >> On 1/29/21, 8:47 AM, "o...@ocs.cz <mailto:o...@ocs.cz>" <o...@ocs.cz >> <mailto:o...@ocs.cz>> wrote: >> >> Hi there, >> >> I've got a project which uses both Groovy and Java sources. After Big Sur >> update -- without touching the project, it remained unchanged and does build >> perfectly on my other machine with a Catalina -- it reports “unable to >> locate the java compiler com.sun.tools.javac.Main, please change your >> classloader settings” and fails. >> >> I have absolutely no idea why and how should I “change my classloader >> settings” in this case? The project never changed, only the environment has >> (from Catalina to Big Sur), and it broke something :( >> >> Any idea what's the culprit and how to fix it? >> >> Thanks a lot! >> OC >> >> P.S. Here are details of the fail, it's very easy to repeat on the Big >> Sur machine: >> >> === >> 69 ocs /tmp> touch empty.java >> 70 ocs /tmp> /usr/local/groovy-2.4.21/bin/groovyc -j empty.java >> org.codehaus.groovy.control.MultipleCompilationErrorsException: startup >> failed: >> General error during semantic analysis: unable to locate the java >> compiler com.sun.tools.javac.Main, please change your classloader settings >> >> java.lang.ClassNotFoundException: unable to locate the java compiler >> com.sun.tools.javac.Main, please change your classloader settings >> at >> org.codehaus.groovy.tools.javac.JavacJavaCompiler.findJavac(JavacJavaCompiler.java:193) >> at >> org.codehaus.groovy.tools.javac.JavacJavaCompiler.compile(JavacJavaCompiler.java:53) >> at >> org.codehaus.groovy.tools.javac.JavaAwareCompilationUnit.gotoPhase(JavaAwareCompilationUnit.java:110) >> at >> org.codehaus.groovy.control.CompilationUnit.compile(CompilationUnit.java:589) >> at >> org.codehaus.groovy.control.CompilationUnit.compile(CompilationUnit.java:558) >> at >> org.codehaus.groovy.tools.FileSystemCompiler.compile(FileSystemCompiler.java:71) >> at >> org.codehaus.groovy.tools.FileSystemCompiler.doCompilation(FileSystemCompiler.java:227) >> at >> org.codehaus.groovy.tools.FileSystemCompiler.commandLineCompile(FileSystemCompiler.java:160) >> at >> org.codehaus.groovy.tools.FileSystemCompiler.commandLineCompileWithErrorHandling(FileSystemCompiler.java:190) >> at >> org.codehaus.groovy.tools.FileSystemCompiler.main(FileSystemCompiler.java:174) >> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) >> at >> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) >> at >> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) >> at java.lang.reflect.Method.invoke(Method.java:498) >> at >> org.codehaus.groovy.tools.GroovyStarter.rootLoader(GroovyStarter.java:116) >> at org.codehaus.groovy.tools.GroovyStarter.main(GroovyStarter.java:138) >> >> 1 error >> >> 71 ocs /tmp> java -version >> java version "1.8.0_181" >> Java(TM) SE Runtime Environment (build 1.8.0_181-b13) >> Java HotSpot(TM) 64-Bit Server VM (build 25.181-b13, mixed mode) >> 72 ocs /tmp> sw_vers >> ProductName: macOS >> ProductVersion: 11.1 >> BuildVersion: 20C69 >> 73 ocs /tmp> >> === >> >> Perhaps worth mentioning a newer Groovy fails too, only with >> _considerably_ less friendly error report (bloody NPE is the worst thing >> ever): >> >> === >> 73 ocs /tmp> /usr/local/groovy-3.0.4/bin/groovyc -j empty.java >> org.codehaus.groovy.control.MultipleCompilationErrorsException: startup >> failed: >> General error during semantic analysis: java.lang.NullPointerException >> >> java.lang.NullPointerException >> at >> org.codehaus.groovy.tools.javac.JavacJavaCompiler.doCompileWithSystemJavaCompiler(JavacJavaCompiler.java:95) >> at >> org.codehaus.groovy.tools.javac.JavacJavaCompiler.compile(JavacJavaCompiler.java:66) >> at >> org.codehaus.groovy.tools.javac.JavaAwareCompilationUnit.gotoPhase(JavaAwareCompilationUnit.java:119) >> at >> org.codehaus.groovy.control.CompilationUnit.compile(CompilationUnit.java:638) >> at >> org.codehaus.groovy.control.CompilationUnit.compile(CompilationUnit.java:606) >> at >> org.codehaus.groovy.tools.FileSystemCompiler.compile(FileSystemCompiler.java:311) >> at >> org.codehaus.groovy.tools.FileSystemCompiler.doCompilation(FileSystemCompiler.java:240) >> at >> org.codehaus.groovy.tools.FileSystemCompiler.commandLineCompile(FileSystemCompiler.java:165) >> at >> org.codehaus.groovy.tools.FileSystemCompiler.commandLineCompileWithErrorHandling(FileSystemCompiler.java:205) >> at >> org.codehaus.groovy.tools.FileSystemCompiler.main(FileSystemCompiler.java:189) >> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) >> at >> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) >> at >> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) >> at java.lang.reflect.Method.invoke(Method.java:498) >> at >> org.codehaus.groovy.tools.GroovyStarter.rootLoader(GroovyStarter.java:111) >> at org.codehaus.groovy.tools.GroovyStarter.main(GroovyStarter.java:129) >> >> 1 error >> >> 74 ocs /tmp> >> === >> >> >> >
