log all compiler output at debug level

Author: jaredstehler

plexus-compilers/plexus-compiler-javac/src/main/java/org/codehaus/plexus/compiler/javac/JavacCompiler.java

@@ -563,6 +563,10 @@ protected CompilerResult compileOutOfProcess(CompilerConfiguration config, Strin
         try {
             returnCode = CommandLineUtils.executeCommandLine(cli, out, out);
 
+            if (log.isDebugEnabled()) {
+                log.debug("Compiler output:\n{}", out.getOutput());
+            }
+
             messages = parseModernStream(returnCode, new BufferedReader(new StringReader(out.getOutput())));
         } catch (CommandLineException | IOException e) {
             throw new CompilerException("Error while executing the external compiler.", e);
@@ -605,7 +609,7 @@ protected CompilerResult compileInProcessWithProperClassloader(Class<?> javacCla
     /**
      * Helper method for compileInProcess()
      */
-    private static CompilerResult compileInProcess0(Class<?> javacClass, String[] args) throws CompilerException {
+    private CompilerResult compileInProcess0(Class<?> javacClass, String[] args) throws CompilerException {
         StringWriter out = new StringWriter();
 
         Integer ok;
@@ -617,6 +621,10 @@ private static CompilerResult compileInProcess0(Class<?> javacClass, String[] ar
 
             ok = (Integer) compile.invoke(null, new Object[] {args, new PrintWriter(out)});
 
+            if (log.isDebugEnabled()) {
+                log.debug("Compiler output:\n{}", out.toString());
+            }
+
             messages = parseModernStream(ok, new BufferedReader(new StringReader(out.toString())));
         } catch (NoSuchMethodException | IOException | InvocationTargetException | IllegalAccessException e) {
             throw new CompilerException("Error while executing the compiler.", e);