Erick, > On 29. 1. 2021, at 5:50 PM, Nelson, Erick <erick.nel...@hdsupply.com> wrote: > On big sur box, is java_home pointing to jre or jdk?
Neither. I had to duckduckgo “java_home” first; I've never needed the thing before. It was empty — both on the Big Sur thing, and also on Catalina (where Groovy compiles Java sources perfectly). Based on the page https://explainjava.com/set-java-home-mac-os/ I have tried to set it up to what returns, /usr/libexec/java_home which did not work; nevertheless, eventually, doing it manually like this === 89 ocs /tmp> /usr/libexec/java_home -V Matching Java Virtual Machines (2): 1.8.181.13 (x86_64) "Oracle Corporation" - "Java" /Library/Internet Plug-Ins/JavaAppletPlugin.plugin/Contents/Home 1.8.0_45 (x86_64) "Oracle Corporation" - "Java SE 8" /Library/Java/JavaVirtualMachines/jdk1.8.0_45.jdk/Contents/Home /Library/Internet Plug-Ins/JavaAppletPlugin.plugin/Contents/Home 90 ocs /tmp> export JAVA_HOME="/Library/Java/JavaVirtualMachines/jdk1.8.0_45.jdk/Contents/Home" 91 ocs /tmp> /usr/local/groovy-2.4.21/bin/groovyc -j empty.java 92 ocs /tmp> === seemed to help indeed. Thanks! Nevertheless, there's no JAVA_HOME at all on my Catalina either, and groovy compiles Java in there without a glitch. How comes? 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 ~> === Thanks a lot, OC > > On 1/29/21, 8:47 AM, "o...@ocs.cz" <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> > === > > >
