HP-UX Programmer's Guide for Java 2
Table Of Contents
- Table of Contents
- 1 Introduction
- 2 HotSpot Technology Tools and Commands
- 3 Configuration for Java™ Support
- 4 Performance and Tuning
- 5 Measuring System Performance
- 6 Using Threads
- 7 Using Signals
- 8 Using Java™ 2 JNI on HP-UX
- 9 Expanding Memory
- Determine your requirements
- Memory layout under HP-UX 11.0 (PA-RISC only)
- Additional memory available under HP-UX 11i (PA-RISC only)
- Allocating physical memory and swap in the Java™ heap
- Useful key command-line options for allocating memory
- Application-dependent considerations using large heap size HP-UX 11i PA-RISC
- Expanding heap size in native applications on PA-RISC HP-UX 11.11 and later releases
- Expanding heap size in native applications on Integrity HP-UX 11.23 and later releases
- Expanding heap size in HP-UX PA-RISC
- Expanding heap size in HP-UX Integrity
- 10 Diagnosing Memory Leaks
- A JDK/JRE 6.0.n and 7.0.n Usage Notes
- Using Java 2 JNI on HP-UX
- Garbage collection
- Asian TrueType fonts and Asian locales
- Date/Time methods defaults
- Profiling
- Compatibility with previous releases
- Java Cryptography Extension (JCE) policy files
- Configuring the Java Runtime Plug-In
- CLASSPATH environment variable
- Java Web Start technology usage
- Upgrading from a previous Java Web Start version
- IPv6 support
- Allocation Site Statistics and Zero Preparation -Xverbosegc
- JDK 6.0.04 flags
- GC log-rotation support
- NUMA collector enhancements
- ThreadDumpPath support
- Garbage-First garbage collector (-XX:+UseG1GC)
- jmap, jinfo, and jstack tools included in JDK 6.0.03
- Additional Java Web Start documentation
- B JDK/JRE 5.0.n Usage Notes
- Using Java 2 JNI on HP-UX
- Garbage collectors: Parallel and Concurrent Mark Sweep
- Allocating physical memory and swap in the Java heap
- Asian TrueType fonts and Asian locales
- Date/Time methods defaults
- Profiling
- Closing a socket (PA-RISC only)
- Compatibility with previous releases
- Java Cryptography Extension (JCE) policy files
- Allocation Site Statistics and Zero Preparation -Xverbosegc
- IPv6 support on Java 5.0
- GC log-rotation support in 5.0
- ThreadDumpPath support in 5.0
- Dynamically loaded libraries in 5.0
- Performance improvement for String.intern()
- Configuring the Java Runtime Plug-In
- CLASSPATH environment variable
- Java Web Start technology usage
- C SDK/RTE 1.4.2.n Usage Notes
- Removing support for unwanted architectures in the JRE
- Support for dynamic thread local storage (TLS)
- Signal Chaining functionality
- Using Java 2 JNI on HP-UX
- HotSpot JVM options
- Garbage collectors: Parallel and Concurrent mark sweep
- Allocating physical memory and swap in the Java heap
- Asian TrueType fonts and Asian locales
- Date/Time methods defaults
- Profiling
- Closing a socket when accept or read is pending (PA-RISC) - new patch information!
- Compatibility with previous releases
- Runtime Plug-In usage and configuration
- GC log-rotation support
- ThreadDumpPath support
- D Additional Resources
- Index
}
else
fprintf (stdout, "after CreateJavaVM \n");
jni = *env;
vmi = *jvm;
// find the class
fprintf (stdout, "before FindClass\n");
jclass cls=env->FindClass("TestNonJavaCallingJava2");
if (cls == 0) {
fprintf (stderr, "Could not locate class TestNonJavaCallingJava2 in clas\
spath
%s\n", options[0].optionString);
exit(1);
}
else
fprintf (stdout, "after FindClass\n");
// find the method
jmethodID mid=env->GetStaticMethodID(cls, *"printInt", "(I)V");
if (mid == 0) {
fprintf (stderr, "Could not locate method printInt with signature (I)V in th\
e
class TestNonJavaCallingJava.");
exit(1);
}
else
fprintf (stdout, "after GetStaticMethod\n");
fflush (stdout);
// invoke the method
env->CallStaticVoidMethod(cls, mid, 100);
// we are done
jvm->DestroyJavaVM();
}
To compile the program:
aCC -c loadjava.cpp -mt -ext \
-I<java_dir>/include -I<java_dir>/include/hp-ux
Linking the program:
To link the program on PA-RISC:
aCC -z -mt -o loadjava loadjava.o -lpthread
To link the program on Integrity:
aCC -z -mt -o loadjava loadjava.o -lpthread
# allow use of SHLIB_PATH to locate shared libraries required by program
chatr +s enable loadjava
To execute the program, set environment variables. The example is for PA-RISC.
For Integrity SDK 1.3.1.x, substitute IA64 for PA_RISC2.0 in the command below.
For Integrity SDK 1.4.2.x substitute IA64N for PA_RISC2.0 in the command below.
Dynamically loading the Hotspot JVM (SDK 1.3.1.x and 1.4.2.x PA-RISC) 61