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[Launching] Improve addition of default VM arguments for Eclipse apps
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Simplify the code and add arguments only if they are not even added with
another value.
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@HannesWell
HannesWell committed Dec 13, 2024
1 parent 51ef6fe commit a6d5284
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Showing 4 changed files with 30 additions and 68 deletions.
6 changes: 6 additions & 0 deletions ui/org.eclipse.pde.launching/src/org/eclipse/pde/internal/launching/launcher/VMHelper.java
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Original file line number Diff line number Diff line change
Expand Up @@ -232,4 +232,10 @@ public static IRuntimeClasspathEntry getJREEntry(ILaunchConfiguration configurat
return JavaRuntime.newRuntimeContainerClasspathEntry(containerPath, IRuntimeClasspathEntry.BOOTSTRAP_CLASSES);
}

public static void addNewArgument(List<String> arguments, String key, String value) {
if (arguments.stream().noneMatch(a -> a.startsWith(key + "="))) { //$NON-NLS-1$
arguments.add(key + "=" + value); //$NON-NLS-1$
}
}

}
84 changes: 22 additions & 62 deletions ...g.eclipse.pde.launching/src/org/eclipse/pde/launching/AbstractPDELaunchConfiguration.java
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Expand Up @@ -17,6 +17,7 @@
import java.io.File;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import java.util.Map;
import java.util.Objects;
import java.util.Optional;
Expand All @@ -43,6 +44,7 @@
import org.eclipse.jdt.launching.IVMRunner;
import org.eclipse.jdt.launching.JavaRuntime;
import org.eclipse.jdt.launching.VMRunnerConfiguration;
import org.eclipse.osgi.service.resolver.BundleDescription;
import org.eclipse.pde.core.plugin.IPluginModelBase;
import org.eclipse.pde.core.plugin.TargetPlatform;
import org.eclipse.pde.internal.core.ICoreConstants;
Expand Down Expand Up @@ -112,8 +114,7 @@ public String showCommandLine(ILaunchConfiguration configuration, String mode, I

VMRunnerConfiguration runnerConfig = new VMRunnerConfiguration(getMainClass(), getClasspath(configuration));
IVMInstall launcher = VMHelper.createLauncher(configuration);
boolean isModular = JavaRuntime.isModularJava(launcher);
runnerConfig.setVMArguments(updateVMArgumentWithAdditionalArguments(getVMArguments(configuration), isModular, configuration));
runnerConfig.setVMArguments(updateVMArgumentWithAdditionalArguments(getVMArguments(configuration), launcher));
runnerConfig.setProgramArguments(getProgramArguments(configuration));
runnerConfig.setWorkingDirectory(getWorkingDirectory(configuration).getAbsolutePath());
runnerConfig.setEnvironment(getEnvironment(configuration));
Expand Down Expand Up @@ -148,8 +149,7 @@ public void launch(ILaunchConfiguration configuration, String mode, ILaunch laun

VMRunnerConfiguration runnerConfig = new VMRunnerConfiguration(getMainClass(), getClasspath(configuration));
IVMInstall launcher = VMHelper.createLauncher(configuration);
boolean isModular = JavaRuntime.isModularJava(launcher);
runnerConfig.setVMArguments(updateVMArgumentWithAdditionalArguments(getVMArguments(configuration), isModular, configuration));
runnerConfig.setVMArguments(updateVMArgumentWithAdditionalArguments(getVMArguments(configuration), launcher));
runnerConfig.setProgramArguments(getProgramArguments(configuration));
runnerConfig.setWorkingDirectory(getWorkingDirectory(configuration).getAbsolutePath());
runnerConfig.setEnvironment(getEnvironment(configuration));
Expand All @@ -167,82 +167,42 @@ public void launch(ILaunchConfiguration configuration, String mode, ILaunch laun

}

private String[] updateVMArgumentWithAdditionalArguments(String[] args, boolean isModular, ILaunchConfiguration configuration) {
String modAllSystem= "--add-modules=ALL-SYSTEM"; //$NON-NLS-1$
String allowSecurityManager = "-Djava.security.manager=allow"; //$NON-NLS-1$
boolean addModuleSystem = false;
boolean addAllowSecurityManager = false;
int argLength = args.length;
if (isModular && !argumentContainsAttribute(args, modAllSystem)) {
addModuleSystem = true;
argLength++; // Need to add the argument
private String[] updateVMArgumentWithAdditionalArguments(String[] args, IVMInstall vmInstall) {
List<String> arguments = new ArrayList<>(Arrays.asList(args));
boolean isModular = JavaRuntime.isModularJava(vmInstall);
if (isModular) {
VMHelper.addNewArgument(arguments, "--add-modules", "ALL-SYSTEM"); //$NON-NLS-1$//$NON-NLS-2$
}

if (isEclipseBundleGreaterThanVersion(4, 24)) { // Don't add allow flags for eclipse before 4.24
try {
IVMInstall vmInstall = VMHelper.getVMInstall(configuration);
if (vmInstall instanceof AbstractVMInstall) {
AbstractVMInstall install = (AbstractVMInstall) vmInstall;
String vmver = install.getJavaVersion();
if (vmver != null && JavaCore.compareJavaVersions(vmver, JavaCore.VERSION_17) >= 0) {
if (!argumentContainsAttribute(args, allowSecurityManager)) {
addAllowSecurityManager = true;
argLength++; // Need to add the argument
}
}
}
} catch (CoreException e) {
PDELaunchingPlugin.log(e);
}
}
if (addModuleSystem || addAllowSecurityManager) {
args = Arrays.copyOf(args, argLength);
if (addAllowSecurityManager) {
args[--argLength] = allowSecurityManager;
}
if (addModuleSystem) {
args[--argLength] = modAllSystem;
if (isEclipseBundleGreaterThanVersion(4, 24) // Don't add allow flags for eclipse before 4.24
&& vmInstall instanceof AbstractVMInstall install) {
String vmver = install.getJavaVersion();
if (vmver != null && JavaCore.compareJavaVersions(vmver, JavaCore.VERSION_17) >= 0) {
VMHelper.addNewArgument(arguments, "-Djava.security.manager", "allow"); //$NON-NLS-1$ //$NON-NLS-2$
}
}
if (!isModular) {
ArrayList<String> arrayList = new ArrayList<>(Arrays.asList(args));
arrayList.remove(modAllSystem);
arrayList.trimToSize();
args = arrayList.toArray(new String[arrayList.size()]);
arguments.remove("--add-modules=ALL-SYSTEM"); //$NON-NLS-1$
}
return args;
return arguments.toArray(String[]::new);
}


private boolean isEclipseBundleGreaterThanVersion(int major, int minor) {
PDEState pdeState = TargetPlatformHelper.getPDEState();
if (pdeState != null) {
try {
Optional<IPluginModelBase> platformBaseModel = Arrays.stream(pdeState.getTargetModels()).filter(x -> Objects.nonNull(x.getBundleDescription())).filter(x -> ("org.eclipse.platform").equals(x.getBundleDescription().getSymbolicName()))//$NON-NLS-1$
.findFirst();
if (platformBaseModel.isPresent()) {
Version version = platformBaseModel.get().getBundleDescription().getVersion();
Version comparedVersion = new Version(major, minor, 0);
if (version != null && version.compareTo(comparedVersion) >= 0) {
return true;
}
}
}
catch (Exception ex) {
Optional<BundleDescription> model = Arrays.stream(pdeState.getTargetModels()) //
.map(IPluginModelBase::getBundleDescription).filter(Objects::nonNull) //
.filter(x -> "org.eclipse.platform".equals(x.getSymbolicName())).findFirst(); //$NON-NLS-1$
return model.map(BundleDescription::getVersion).filter(v -> v.compareTo(new Version(major, minor, 0)) >= 0).isPresent();
} catch (Exception ex) {
PDELaunchingPlugin.log(ex);
}
}
return false;

}

private boolean argumentContainsAttribute(String[] args, String modAllSystem) {
for (String string : args) {
if (string.equals(modAllSystem))
return true;
}
return false;
}


/**
* Returns the VM runner for the given launch mode to use when launching the
Expand Down
4 changes: 1 addition & 3 deletions ...eclipse.pde.launching/src/org/eclipse/pde/launching/JUnitLaunchConfigurationDelegate.java
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Expand Up @@ -280,9 +280,7 @@ protected void collectExecutionArguments(ILaunchConfiguration configuration, Lis
IVMInstall launcher = VMHelper.createLauncher(configuration);
boolean isModular = JavaRuntime.isModularJava(launcher);
if (isModular) {
String modAllSystem = "--add-modules=ALL-SYSTEM"; //$NON-NLS-1$
if (!vmArguments.contains(modAllSystem))
vmArguments.add(modAllSystem);
VMHelper.addNewArgument(vmArguments, "--add-modules", "ALL-SYSTEM"); //$NON-NLS-1$//$NON-NLS-2$
}
// if element is a test class annotated with @RunWith(JUnitPlatform.class, we add this in program arguments
@SuppressWarnings("restriction")
Expand Down
4 changes: 1 addition & 3 deletions ...t/src/org/eclipse/pde/unittest/junit/launcher/JUnitPluginLaunchConfigurationDelegate.java
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Original file line number Diff line number Diff line change
Expand Up @@ -586,9 +586,7 @@ protected void collectExecutionArguments(ILaunchConfiguration configuration, Lis
IVMInstall launcher = VMHelper.createLauncher(configuration);
boolean isModular = JavaRuntime.isModularJava(launcher);
if (isModular) {
String modAllSystem = "--add-modules=ALL-SYSTEM"; //$NON-NLS-1$
if (!vmArguments.contains(modAllSystem))
vmArguments.add(modAllSystem);
VMHelper.addNewArgument(vmArguments, "--add-modules", "ALL-SYSTEM"); //$NON-NLS-1$//$NON-NLS-2$
}
// if element is a test class annotated with @RunWith(JUnitPlatform.class, we
// add this in program arguments
Expand Down

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