Stack Overflow
Stack Overflow

Questions tagged [java-opts]

80 questions
98
votes
7 answers

Duplicated Java runtime options : what is the order of preference?

Considering the following command line java -Xms128m -Xms256m myapp.jar Which settings will apply for JVM Minimum memory (Xms option) : 128m or 256m ?
fabien7474
  • 16,300
  • 22
  • 96
  • 124
28
votes
7 answers

how to set JAVA_OPTS for Tomcat in Windows?

I'm trying to set JAVA_OPTS for Tomcat on a Windows machine, but I keep getting an error if I add more than one variable. For example, this works: set JAVA_OPTS="-Xms512M" But this does not: set JAVA_OPTS="-Xms512M -Xmx1024M" It results in the…
wannabeartist
  • 2,753
  • 6
  • 36
  • 49
16
votes
3 answers

Command to find out -Xms and -Xmx variable values for a given java process?

I have a java program, which i ran and figured out its process id with jps. How can i see what is the value of -Xms and -Xmx variable for this java process ?
Adon Smith
  • 1,849
  • 7
  • 19
  • 19
14
votes
2 answers

org.apache.catalina.startup.Bootstrap on dock in Mac

Hope you can help me. I have a strange org.apache.catalina.startup.Bootstrap icon on my dock in mac. Im using the 10.7.2 version with Lion. I've use this: export JAVA_OPTS="-Djava.awt.headless=true" at the startup.sh and shutdown.sh but got the…
napstercake
  • 1,815
  • 6
  • 32
  • 57
13
votes
3 answers

How to convert String value to Custom Model Object in Java?

I have one Model Object. In which, i have multiple values. I want to store this Values in SQLite. But data is large, so i want to store Direct Model object in databse. So i convert model Object to string and store it into database. Now, Problem is…
Android Develeoper
  • 411
  • 1
  • 6
  • 24
12
votes
2 answers

Find Java options used by Maven

How can I find which Java options (Xmx, Xms, Xss, etc) are being used by Maven? I've found out that a way to set them is via the environment MAVEN_OPTS. Now I want a way to be assured it's getting the right settings. EDIT: I believe it´s different…
Victor Basso
  • 5,556
  • 5
  • 42
  • 60
8
votes
2 answers

Setting JAVA_OPTS and JAVA_TOOL_OPTIONS in Gradle

Running a large Gradle build (with JDK7) I receive two OutOfMemoryErrors: Exception: java.lang.OutOfMemoryError thrown from the UncaughtExceptionHandler in thread "main" Exception: java.lang.OutOfMemoryError thrown from the UncaughtExceptionHandler…
user3105453
  • 1,881
  • 5
  • 32
  • 55
8
votes
2 answers

-​->-​- operator in Java

I was wondering, what does the -->-- operator do in Java? For example, if I have the following code: int x = 3; int y = 3; if (x -->-- y) { return true; } This always returns true. Thank you!
MarkusWillson
  • 411
  • 1
  • 3
  • 11
8
votes
3 answers

JAVA_OPTS set in catalina.sh not working for TOMCAT private instance

I have placed JVM options via JAVA_OPTS in catalina.sh in the catalina base. However, the system doesn't pick those options--I am trying to pass profiling information to set paths for project properties and logging files. I have to set the options…
user20507
  • 93
  • 1
  • 1
  • 6
6
votes
1 answer

How to interpret the output of -XX:CompileCommand="print Class::Method" in java

Here is an excerpt of the output that I get when I run the following command (40 is just an arg to the Fibonacci program) : java -XX:+UnlockDiagnosticVMOptions -XX:CompileCommand="print Fibonacci::fibonacci" Fibonacci 40 Can someone explain the…
Cherry Vanc
  • 781
  • 1
  • 4
  • 19
6
votes
3 answers

IntelliJ set heap size over 4GB. How to?

I'm using IntelliJ 14.3 on x64 Java. Available memory: 10Gb (out of 16Gb total RAM) (Basically set -Xmx8000M or greater) The problem is I need more than 4Gb memory to use for an App. I can not find any answer or solution to my problem and I've…
Adrian Pop
  • 285
  • 2
  • 17
6
votes
1 answer

Xloggc not creating log file if path doesn't exist for the first time

-Xss256k -Djava.net.preferIPv4Stack=true -Dfile.encoding=UTF-8 -XX:+UseParNewGC -XX:+UseConcMarkSweepGC -XX:CMSInitiatingOccupancyFraction=75 -XX:+UseCMSInitiatingOccupancyOnly -XX:+DisableExplicitGC -XX:+PrintGCDetails -XX:+PrintGCDateStamps -XX:+Pr…
Ram
  • 93
  • 1
  • 6
6
votes
2 answers

Set JAVA_OPTS in JBOSS standalone.sh file

I have an app on jboss which logging through log4j. When I running my server through bat file (standalone.bat) logs work, but there is a problem under standalone.sh file. Here is how I set JAVA_OPTS in standalone.bat: set "JAVA_OPTS=%JAVA_OPTS%…
caro2
  • 155
  • 1
  • 4
  • 13
5
votes
2 answers

Jenkins - java.lang.OutOfMemoryError: PermGen space -

Environment: Linux/Windows7, Java 1.6.0.03/37 or 1.7 I downloaded jenkins.war and after the initial setup using the following script/command, I downloaded some plugins(10-15) and tried to restart Jenkins, it worked. Then, I got some more plugins…
AKS
  • 16,482
  • 43
  • 166
  • 258
3
votes
1 answer

Setting java_opts to tomcat service from command line

I have a tomcat7 service running on windows, Usually in order to configure the Java options I go to Tomcat 7.0\bin\tomcat7w.exe and there in java tab, in java options I print the definition I want, for example -javaagent:... I want to do this…
user1197126
  • 61
  • 1
  • 4
1
2 3 4 5 6