Android Question [solved] java.lang.OutOfMemoryError: Java heap space

angel_ · Mar 17, 2019

After an update I get this error

B4X:

UNEXPECTED TOP-LEVEL ERROR:
java.lang.OutOfMemoryError: Java heap space
    at java.util.Arrays.copyOfRange(Arrays.java:3664)
    at java.lang.String.<init>(String.java:207)
    at com.android.dx.rop.cst.CstString.utf8BytesToString(CstString.java:158)
    at com.android.dx.rop.cst.CstString.<init>(CstString.java:200)
    at com.android.dx.cf.cst.ConstantPoolParser.parseUtf8(ConstantPoolParser.java:420)
    at com.android.dx.cf.cst.ConstantPoolParser.parse0(ConstantPoolParser.java:271)
    at com.android.dx.cf.cst.ConstantPoolParser.parse(ConstantPoolParser.java:153)
    at com.android.dx.cf.cst.ConstantPoolParser.parseIfNecessary(ConstantPoolParser.java:127)
    at com.android.dx.cf.cst.ConstantPoolParser.getPool(ConstantPoolParser.java:118)
    at com.android.dx.cf.direct.DirectClassFile.parse0(DirectClassFile.java:505)
    at com.android.dx.cf.direct.DirectClassFile.parse(DirectClassFile.java:420)
    at com.android.dx.cf.direct.DirectClassFile.parseToInterfacesIfNecessary(DirectClassFile.java:402)
    at com.android.dx.cf.direct.DirectClassFile.getMagic(DirectClassFile.java:253)
    at com.android.dx.command.dexer.Main.parseClass(Main.java:851)
    at com.android.dx.command.dexer.Main.access$7(Main.java:846)
    at com.android.dx.command.dexer.Main$ClassParserTask.call(Main.java:1822)
    at com.android.dx.command.dexer.Main.processClass(Main.java:834)
    at com.android.dx.command.dexer.Main.processFileBytes(Main.java:802)
    at com.android.dx.command.dexer.Main.access$3(Main.java:773)
    at com.android.dx.command.dexer.Main$FileBytesConsumer.processFileBytes(Main.java:1775)
    at com.android.dx.cf.direct.ClassPathOpener.processArchive(ClassPathOpener.java:284)
    at com.android.dx.cf.direct.ClassPathOpener.processOne(ClassPathOpener.java:166)
    at com.android.dx.cf.direct.ClassPathOpener.process(ClassPathOpener.java:144)
    at com.android.dx.command.dexer.Main.processOne(Main.java:756)
    at com.android.dx.command.dexer.Main.processAllFiles(Main.java:650)
    at com.android.dx.command.dexer.Main.runMonoDex(Main.java:315)
    at com.android.dx.command.dexer.Main.runDx(Main.java:293)
    at com.android.dx.command.dexer.Main.main(Main.java:249)
    at com.android.dx.command.Main.main(Main.java:94)
Picked up _JAVA_OPTIONS: -Xmx1024m -Xms1024m

I have increase the MaxRamForDex but it doesn't work

Erel · Mar 17, 2019

What is MaxRamForDex set to? Have you set it while the IDE was closed?

Did is start after you update Java?

angel_ said:
Picked up _JAVA_OPTIONS: -Xmx1024m -Xms1024m

This line suggests that there is an environment variable that affects compilation.

angel_ · Mar 17, 2019

Erel said:
What is MaxRamForDex set to?

MaxRamForDex=2048, appears this error

B4X:

B4A Versión: 8.80
Parseando código.    (0.68s)
Building folders structure.    (0.53s)
Compilando código.    (1.10s)
Compilado códigos de diseños.    (0.05s)
Organizando librerías.    (3.50s)
Generando el fichero R.    (0.97s)
Compilando el código del motor de depuración.    Error

Error occurred during initialization of VM
Could not reserve enough space for 2097152KB object heap

Erel said:
Have you set it while the IDE was closed?

Yes

Erel said:
Did is start after you update Java?

I updated several things of sdkmanager

OliverA · Mar 17, 2019

Same issue as here? https://www.b4x.com/android/forum/t...nger-compiles-any-project.103662/#post-649871
@Erel supplies a solution in that thread

Erel · Mar 18, 2019

angel_ said:
Could not reserve enough space for 2097152KB object heap

Seems like there isn't enough memory available on your PC. How much RAM is installed? Try to close other apps.

angel_ · Mar 18, 2019

DonManfred · Mar 18, 2019

are you using 32bit of Java?

angel_ · Mar 18, 2019

I think so.

With B4I I have no problems

Erel · Mar 18, 2019

I think that your computer ran out of available memory. You should actually decrease MaxRamForDex.

Pendrush · Mar 18, 2019

With 32bit java MaxRamForDex=2048 is not possible, you must use Java x64 JDK.

EDIT:
I have x64 JDK and MaxRamForDex is set to 4096.

Erel · Mar 18, 2019

You are correct. This is the cause of this issue here.

angel_ · Mar 18, 2019

I have set MaxRamForDex to 4096 and JDK x64, it works perfectly

Thank you

Android Question [solved] java.lang.OutOfMemoryError: Java heap space

angel_

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Erel

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angel_

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OliverA

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Erel

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angel_

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DonManfred

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angel_

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Erel

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Pendrush

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Erel

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angel_

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