Bug 923: Remove dependency of CStruct annotation processor _generation_ and generated_class_user due to Java8 issues.

Java8's annotation processor as embedded within javac does not allow
referencing not-yet existing generated classes in a class source code
which will produce these generated classes via the annotation process.

Example:

+++
import com.jogamp.gluegen.structgen.CStruct;

public class Lala {
  @CStruct(name="RenderingConfig", header="TestStruct01.h")
  public RenderingConfig config;
}
+++

Above example illustrates that the type 'RenderingConfig'
does not exist at time of processing the annotation.
The type will be created via the annotation process itself.

Even though we pass '-proc:only', i.e. skip java compilation,
Java8's annotation processing via javac fails in such case.

We see this as a bug within javac's annotation processing itself!

+++

This workaround splits the annotation process and using the class as
generated by the former.

To allow this to work, CStruct receives a new field 'jname'
allowing to enforce the java-name of the structure
using a dummy field type like boolean.

  @CStruct(name="RenderingConfig", jname="RenderingConfig", header="TestStruct01.h")
  public boolean dummy;

Further more CStruct can be annotated on the package, i.e. 'package-info.java',
avoiding the dependency problem altogether.
To support multiple header files and types,
'CStructs' has been introduced using an array of 'CStruct'.

  @CStructs({@CStruct(name="RenderingConfig", header="TestStruct01.h"), @CStruct(name="Pixel", header="TestStruct02.h")})
  package com.jogamp.gluegen.test.junit.structgen;

Tests:
  - Build w/ Java7 and Java8
  - Validated 'major version 50' (Java 6) class files (OK)

5 files changed, 39 insertions, 10 deletions

diff --git a/make/build-test.xml b/make/build-test.xml
index bccc534..2bf2e37 100644
--- a/make/build-test.xml
+++ b/make/build-test.xml
@@ -114,7 +114,23 @@
         <echo message=" test.base.dir ${test.base.dir}"/>
         <echo message=" build_t.gen     ${build_t.gen}"/>
 
-        <!-- Annotation Processor Only - First -->
+        <!-- Javac of Annotation Processor dependencies - First -->
+        <javac destdir="${build_t.java}" 
+               fork="yes"
+               includeAntRuntime="false"
+               memoryMaximumSize="${javac.memorymax}"
+               encoding="UTF-8"
+               source="${target.sourcelevel}" 
+               target="${target.targetlevel}" 
+               bootclasspath="${target.rt.jar}"
+               debug="${javacdebug}" debuglevel="${javacdebuglevel}">
+            <classpath refid="junit.compile.classpath"/>
+            <compilerarg value="-proc:none"/>
+            <src path="${test.base.dir}/com/jogamp/junit/util"/>
+        </javac>
+
+        <!-- Annotation Processor - Second -->
+        <mkdir dir="${build_t.gen}/classes/com/jogamp/gluegen/test/junit/structgen"/>
         <javac destdir="${build_t.java}" 
                fork="yes"
                includeAntRuntime="false"
@@ -129,9 +145,10 @@
             <compilerarg value="-J-Djogamp.gluegen.structgen.debug"/>
             <compilerarg value="-J-Djogamp.gluegen.structgen.output=${build_t.gen}/classes"/>
             <src path="${test.base.dir}/com/jogamp/gluegen/test/junit/structgen"/>
+            <src path="${build_t.gen}/classes/com/jogamp/gluegen/test/junit/structgen" />
         </javac>
 
-        <!-- Javac Only - Second -->
+        <!-- Javac All - Third -->
         <javac destdir="${build_t.java}" 
                fork="yes"
                includeAntRuntime="false"
diff --git a/make/scripts/check-java-major-version.sh b/make/scripts/check-java-major-version.sh
index 6b1711c..49c0445 100755
--- a/make/scripts/check-java-major-version.sh
+++ b/make/scripts/check-java-major-version.sh
@@ -10,9 +10,10 @@ function dump_version() {
 function dump_versions() {
     cd $1
     #dump_version jogamp.common.Debug
-    for i in `find . -name '*.class'` ; do 
-      dump_version `echo $i | sed -e 's/\//./g' -e 's/\.class//g'`
-    done
+    javap -v `find . -name '*.class'` | grep -e '^Classfile' -e 'major version'
+    #for i in `find . -name '*.class'` ; do 
+    #  dump_version `echo $i | sed -e 's/\//./g' -e 's/\.class//g'`
+    #done
     cd $TDIR
 }
 
diff --git a/make/scripts/make.gluegen.all.linux-x86_64.sh b/make/scripts/make.gluegen.all.linux-x86_64.sh
index 8c62cd0..60e35d6 100755
--- a/make/scripts/make.gluegen.all.linux-x86_64.sh
+++ b/make/scripts/make.gluegen.all.linux-x86_64.sh
@@ -27,7 +27,7 @@ export TARGET_RT_JAR=/opt-share/jre1.6.0_30/lib/rt.jar
 #export JOGAMP_JAR_CODEBASE="Codebase: *.jogamp.org"
 export JOGAMP_JAR_CODEBASE="Codebase: *.goethel.localnet"
 
-# BUILD_ARCHIVE=true \
+BUILD_ARCHIVE=true \
 ant \
     -Drootrel.build=build-x86_64 \
     $* 2>&1 | tee make.gluegen.all.linux-x86_64.log
diff --git a/make/scripts/runtest.sh b/make/scripts/runtest.sh
index 947755f..f518668 100755
--- a/make/scripts/runtest.sh
+++ b/make/scripts/runtest.sh
@@ -119,7 +119,8 @@ function onetest() {
 #onetest com.jogamp.common.os.TestElfReader01 2>&1 | tee -a $LOG
 #onetest com.jogamp.gluegen.PCPPTest 2>&1 | tee -a $LOG
 #onetest com.jogamp.gluegen.test.junit.generation.Test1p1JavaEmitter 2>&1 | tee -a $LOG
-onetest com.jogamp.gluegen.test.junit.generation.Test1p2ProcAddressEmitter 2>&1 | tee -a $LOG
+#onetest com.jogamp.gluegen.test.junit.generation.Test1p2ProcAddressEmitter 2>&1 | tee -a $LOG
 #onetest com.jogamp.gluegen.test.junit.generation.Test1p2LoadJNIAndImplLib 2>&1 | tee -a $LOG
 #onetest com.jogamp.gluegen.test.junit.structgen.TestStructGen01 2>&1 | tee -a $LOG
+onetest com.jogamp.gluegen.test.junit.structgen.TestStructGen02 2>&1 | tee -a $LOG
 
diff --git a/make/scripts/setenv-build-jogl-x86_64.sh b/make/scripts/setenv-build-jogl-x86_64.sh
index c0746e9..8994365 100644
--- a/make/scripts/setenv-build-jogl-x86_64.sh
+++ b/make/scripts/setenv-build-jogl-x86_64.sh
@@ -26,15 +26,25 @@ if [ -z "$ANT_PATH" ] ; then
     exit
 fi
 
-if [ -e /opt-linux-x86_64/jre7 -a -e /opt-linux-x86_64/j2se7 ] ; then
-    J2RE_HOME=/opt-linux-x86_64/jre7
-    JAVA_HOME=/opt-linux-x86_64/j2se7
+if [ -e /opt-linux-x86_64/jre8 -a -e /opt-linux-x86_64/j2se8 ] ; then
+    J2RE_HOME=/opt-linux-x86_64/jre8
+    JAVA_HOME=/opt-linux-x86_64/j2se8
     PATH=$J2RE_HOME/bin:$JAVA_HOME/bin:$PATH
     export J2RE_HOME JAVA_HOME
     FOUND_JAVA=1
 fi 
 
 if [ -z "$FOUND_JAVA" ] ; then
+    if [ -e /opt-linux-x86_64/jre7 -a -e /opt-linux-x86_64/j2se7 ] ; then
+        J2RE_HOME=/opt-linux-x86_64/jre7
+        JAVA_HOME=/opt-linux-x86_64/j2se7
+        PATH=$J2RE_HOME/bin:$JAVA_HOME/bin:$PATH
+        export J2RE_HOME JAVA_HOME
+        FOUND_JAVA=1
+    fi 
+fi 
+
+if [ -z "$FOUND_JAVA" ] ; then
     if [ -e /opt-linux-x86_64/jre6 -a -e /opt-linux-x86_64/j2se6 ] ; then
         J2RE_HOME=/opt-linux-x86_64/jre6
         JAVA_HOME=/opt-linux-x86_64/j2se6